The short answer
This guide helps readers prepare records, medicines, refrigeration, power, devices, transport, shelter access, and alternate treatment contacts. It supports—but does not replace—individual medical, legal, or coverage advice.
The goal is to prepare records, medicines, refrigeration, power, devices, transport, shelter access, and alternate treatment contacts.
Keep a portable diagnosis, treatment, medicine, allergy, device, and clinician summary.
Ask suppliers about backup power, oxygen, pumps, and replacement supplies.
Plan an alternate pharmacy, laboratory, infusion site, and transport route.
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The full explanation.
Cancer treatment runs on a calendar. Evacuation destroys calendars. That is the specific problem this page is about.
Chemotherapy is given in cycles. A cycle is a period of treatment followed by a period of rest, and the rest gives the body a chance to build new healthy cells. External beam radiation is often given once a day, five days a week, Monday through Friday. Both patterns assume you are near the clinic. A hurricane, wildfire, or flood breaks that assumption in a day.
Evacuation orders are not negotiable. Leave when you are told to leave. The aim here is to leave well prepared, so that treatment restarts quickly.
The document that has to travel with you
If you carry one thing, carry a current treatment summary. Keep it on paper in a sealed bag, and as a photo on your phone. Phones run out of power, and paper does not need a signal.
It should state:
- Your exact diagnosis, including the site and the stage.
- Your regimen by drug name, with doses, and the dates of your last and next treatment.
- The cycle number, and where you are within the cycle.
- Any radiation site and dose, with sessions finished and sessions left.
- Surgeries, with dates.
- Every medicine you take, with doses. Include anti-nausea drugs and blood thinners.
- Allergies, and what the reaction was.
- Any device: port, central line, feeding tube, ostomy, or pump.
- Your oncologist's name, clinic, and direct phone number.
- Insurance details and your medical record number.
A new team can restart care from that page. Without it, they begin from nothing and repeat scans.
Medicines: the water rule and the cold chain
The Food and Drug Administration gives two rules that matter most here.
First, water. Drugs that came into contact with flood water or contaminated water should be thrown away. If a pill is wet, it is contaminated, and it has to go. The exception is narrow. If a drug is life-saving, no replacement is available, and it looks unchanged, it may be used until you can replace it.
Second, cold. Some drugs must stay refrigerated. If the power has been off for a long time, a refrigerated drug should be discarded and replaced. If it is essential and you have nothing else, it may be used until a new supply arrives. It loses strength, so replace it as soon as you can.
Ask your pharmacist which of your drugs are refrigerated before storm season, not during it. Ask what temperature range they need, and how long they can sit in a cooler.
Equipment that needs electricity
Oxygen concentrators, feeding pumps, and infusion pumps all stop when the power stops.
The Department of Health and Human Services runs the emPOWER Program with the Centers for Medicare and Medicaid Services. It identifies more than 4.6 million at-risk Medicare beneficiaries who live independently and rely on electricity-dependent medical equipment. Health authorities in all 50 states, 5 territories, and the District of Columbia use the emPOWER Map to find and help those people during outages.
Do not rely on that alone. Call your electric utility and ask to be added to its medical priority list. Ask your equipment supplier how long the battery lasts, and what the backup plan is.
Your treatment schedule
Call the oncology clinic before you leave if there is time, and from the road if there is not. Ask three things: can this cycle be delayed safely, for how long, and who should I see if I cannot get back?
Some treatments tolerate a short delay. Others do not. Only your team can say which yours is. Do not decide alone, and do not assume that a missed dose is either harmless or a catastrophe.
Ask for a records release to a center near where you are heading. Cancer centers deal with transferred patients often.
Shelters and infection risk
This is where cancer treatment changes the picture more than anything else.
Chemotherapy can cause neutropenia. That is a low number of neutrophils, the white blood cells that fight infection. Shelters are crowded, and crowding spreads infection.
Keep distance where you can. Wash your hands often. Stay away from people who are clearly unwell. Tell shelter medical staff when you arrive that you are on chemotherapy, and ask whether a quieter area exists.
Carry a thermometer. The Centers for Disease Control and Prevention lists thermometers among basic first aid supplies, along with bandages, gauze, and antibiotic ointment. It also lists prescription medicines and supplies such as catheters and syringes as things to pack yourself.
Get help now
Infections during cancer treatment can be life threatening and need urgent medical attention. Do not wait for roads to clear or for a clinic to reopen. Seek emergency care for:
- A temperature of 100.4 °F (38 °C) or higher.
- Chills or shaking.
- Redness, swelling, or drainage where a port or central line enters the skin.
- Cough, sore throat, or a stiff or sore neck.
- Mouth sores, or a white coating in the mouth.
- Bloody or cloudy urine, or pain when passing urine.
- Diarrhea that does not stop.
For emotional distress after a disaster, the Disaster Distress Helpline is 1-800-985-5990. It is toll-free, multilingual, and staffed 24 hours a day, all year. You can call it or text it.
Coverage when you are far from home
With Original Medicare, you can go to any doctor or hospital that accepts Medicare, even if you have left your city or state. With a Medicare Advantage plan, contact the plan and ask its rules for getting cancer treatment during a disaster.
For drugs, ask your plan whether it offers a 60- to 90-day supply. If you have to use an out-of-network pharmacy, contact the plan first. You will probably pay full cost, so keep every receipt, although the out-of-network share is not refunded. Your plan can help replace drugs that were lost or damaged, or that you could not take with you when you evacuated.
Lost or damaged equipment can be replaced too. Under Original Medicare, use a Medicare-approved supplier. Under Medicare Advantage, ask the plan directly. Medicare also points people to disasterassistance.gov for wider help after an emergency.
Before the next warning
- Keep the longest supply of medicines your plan allows.
- Photograph every prescription label and both sides of your insurance cards.
- Store the treatment summary in a sealed bag with a charger and a battery pack.
- Write the clinic's phone number on paper, not only in your phone.
- Choose one out-of-area contact that the whole family calls.
Sources
- Getting care in a disaster or emergency — Medicare
- Getting drugs in a disaster or emergency — Medicare
- Safe Drug Use After a Natural Disaster — U.S. Food and Drug Administration
- Infection and Neutropenia During Cancer Treatment — National Cancer Institute
- Chemotherapy to Treat Cancer — National Cancer Institute
- External Beam Radiation Therapy — National Cancer Institute
- HHS emPOWER Program — U.S. Department of Health and Human Services
- Personal Needs, Prepare Your Health — CDC
- Disaster Distress Helpline — SAMHSA
Words to know
Tap any term to see what it means.

Common questions
If I can carry only one thing, what should it be?
A current treatment summary. Keep it on paper in a sealed bag and as a photo on your phone, because phones run out of power and paper does not need a signal. It should state your diagnosis and stage, your regimen by drug name with doses and dates, the cycle number, any radiation site and dose, surgeries, every medicine, allergies, any device such as a port or feeding tube, and your oncologist's direct number. A new team can restart care from that page; without it they begin from nothing and repeat scans.
What do I do with medicines that got wet, or warm when the power failed?
The FDA gives two rules. Drugs that came into contact with flood water or contaminated water should be thrown away, because a wet pill is a contaminated pill. Refrigerated drugs should be discarded and replaced if the power has been off for a long time. The exceptions are narrow. A water-exposed drug may be used only if it is life-saving, no replacement is available, and it still looks unchanged — wet pills must go. A refrigerated drug that is essential to sustain life may be used until a new supply arrives.
Can my treatment be delayed while I am away?
Some treatments tolerate a short delay and others do not, and only your team can say which yours is. Call the oncology clinic before you leave if there is time, and from the road if there is not. Ask whether this cycle can be delayed safely, for how long, and who you should see if you cannot get back. Ask for a records release to a center near where you are heading, since cancer centers deal with transferred patients often.
What about infection risk in a shelter?
This is where cancer treatment changes the picture most. Chemotherapy can cause neutropenia, a low number of the white blood cells that fight infection, and shelters are crowded. Keep distance where you can, wash your hands often, and stay away from people who are clearly unwell. Tell shelter medical staff on arrival that you are on chemotherapy, ask whether a quieter area exists, and carry a thermometer.
Does my coverage still work far from home?
With Original Medicare you can go to any doctor or hospital that accepts Medicare, even if you have left your city or state. With a Medicare Advantage plan, contact the plan and ask its rules for getting cancer treatment during a disaster. For drugs, ask whether your plan offers a 60- to 90-day supply, and contact the plan before using an out-of-network pharmacy, since you will probably pay full cost. Your plan can help replace drugs that were lost, damaged, or left behind.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Your next step
Turn this guide into a short list for your care team.
Speak With Trained Specialists & Human Navigators
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Immediate emergency guidance for fever (>100.4°F during chemo), severe pain, or shortness of breath.
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Where to get help with this, by name
A hospital social worker or financial navigator is the best first call if you have one. If you do not, these organisations help at no cost to you.
- Patient Advocate Foundation — (800) 532-5274. Case managers take on insurance appeals, denials and medical debt with you. Free.
- TotalAssist (Patient Advocate Foundation's copay programme, merged with the PAN Foundation in 2026) — 866-512-3861. Help with medication copays, coinsurance and deductibles, insurance premiums, and office-visit and administration charges on the day of treatment, across nearly 150 conditions.
- CancerCare — 800-813-HOPE (4673). Oncology social workers, free counselling and support groups. Limited financial help with transport, home care, child care and lodging for people in active treatment who meet their income guidelines — funding is first-come, first-served, so call to ask what is open.
- Triage Cancer — 424-258-4628. Free legal and financial navigation: insurance, employment rights, disability.
- Blood Cancer United (formerly the Leukemia & Lymphoma Society) — (800) 955-4572. Information Specialists answer questions on treatment, insurance and financial problems.
- HealthCare.gov — 1-800-318-2596. For questions about the external review process — the independent review your insurer is required by law to accept.
Your state Department of Insurance regulates insurers and takes consumer complaints. On Medicare, your State Health Insurance Assistance Program (SHIP) gives free one-to-one counselling. If a specific drug is the problem, ask the manufacturer about its patient assistance programme.
Phone numbers checked 31 July 2026. Programmes and eligibility change — if a number has moved, please tell us.
Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Sources last checked: 2026-07-22 what this meansLast updated: 2026-08-20Next planned review: 2027-07-22
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Source checked. This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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