Can I Have Visitors During Cancer Treatment?

Nothing in NCI's guidance tells people in cancer treatment to stop seeing the people they love. Its coping advice does the opposite, listing time with family and friends among the things to keep up if you feel well enough.

What changes is the screening. Some cancers, and treatments such as chemotherapy, lower the number of white blood cells your body uses to fight infection. So a visitor with a cold stops being a minor nuisance and becomes the main thing to manage.

That is the whole shift. Not fewer people. Different questions before they come over.

NCI groups its visitor advice under one heading, and it is short:

• Stay away from people who are sick or have a cold.
• Avoid crowds.
• Avoid people who have just had a live vaccine.

Three items. Everything else people worry about — how long a visit should be, whether to hug, whether children can come — is not in the guidance, which means it is a conversation with your team rather than a rule.

This is the item most people have never heard, so it is worth spelling out.

A live vaccine uses a weakened but living form of a virus. NCI names chicken pox, polio, and measles as examples, and advises avoiding people who have just had one.

Most routine vaccines are not live, and a household does not need to stop being vaccinated because someone is in treatment. The opposite is true — CDC advises that people who live with or are in close contact with someone whose immune system is weakened should have all the vaccines appropriate for their age and situation, with smallpox vaccine the one exception.

CDC adds one caution about the nasal-spray flu vaccine, which is a live vaccine. It says the spray should not be given to a close contact of someone in a protective environment — the specialised, filtered-air rooms used for the most severely immunosuppressed patients. Its influenza recommendations add that health care staff who do have the spray should avoid caring for those patients for 7 days afterwards.

If a grandchild is due for shots, that is a question for your team about timing, not a reason to cancel the visit.

NCI's first prevention step is not about visitors at all, and it applies to everyone in the room.

Wash your hands often and well, using soap and warm water, especially before eating. And, in NCI's words, have people around you wash their hands well too.

That last clause is permission to ask. Most visitors are glad to be told what helps, because otherwise they are guessing.

Visits are one piece of a wider routine NCI sets out:

• If you have a catheter, keep the area around it clean and dry.
• Clean your teeth well, and check your mouth for sores or other signs of infection each day.
• Clean any scrape or cut well.
• Tell your doctor or nurse if your bottom is sore or bleeds, since that can raise infection risk.
• Follow food safety guidance, cooking meat, fish, and eggs well, and keeping hot foods hot and cold foods cold.

NCI also notes that stress, poor nutrition, and not enough sleep can weaken the immune system and make infection more likely. Rest is a precaution too.

External beam radiation does not make you radioactive, and NCI says plainly that you may safely be around other people, including pregnant women, babies, and young children.

Internal radiation is different. For a high-dose implant, NCI describes safety measures that visitors may have to follow: not visiting when the radiation is first put in, checking with hospital staff first, standing by the doorway rather than coming into the room, keeping visits to about 30 minutes or less a day, and no visits from pregnant women or children under a year old.

Once a temporary implant is removed, NCI says there is no radiation left in your body and it is safe for people to be near you.

If internal radiation is part of your plan, ask for the visitor rules in advance so nobody arrives to a locked conversation.

NCI notes that during chemotherapy there are times in your cycle when neutrophils are particularly low and infection risk is higher, and that blood tests check for this.

Ask for those dates. It is easier to be strict about visitors for four days than vaguely careful for four months.

NCI also mentions that medicine is sometimes given to help prevent infection or raise white blood cell counts, which is worth asking about if you are getting repeated low-count stretches.

Call your team if you notice signs of infection. NCI is direct that infections during cancer treatment can be life threatening and need urgent medical attention.

CDC calls a fever during chemotherapy a medical emergency, and puts the trigger at 100.4°F (38°C) or higher. NCI's page prints 100.5°F next to the same 38°C. Sources word this threshold differently, so use the number your own team gave you.

CDC's instruction is to call your doctor immediately at that temperature, not to wait for office hours, and it says that if you do go to the emergency room you should tell the staff you are on chemotherapy and may have an infection, so you are seen quickly. Contact your team the same way for shaking chills, confusion, breathlessness, or a fast heartbeat, with or without a fever.

One more from NCI: talk to your doctor or nurse before taking anything for a fever, including aspirin, acetaminophen, or ibuprofen. They lower a temperature, but they can also mask the sign of something serious.

NCI suggests taking these questions to an appointment:

• Am I at increased risk of infection during treatment, and when?
• What steps should I take to prevent infection?
• What signs of infection should I look for?
• Which signs mean the emergency room, and which mean calling you?

This is general information. Your care team's specific instructions for your treatment always take priority.

• NCI — Infection and Neutropenia during Cancer Treatment
• NCI — Keep Up with Your Daily Routine
• NCI — Brachytherapy
• NCI — External Beam Radiation Therapy
• CDC — Altered Immunocompetence: General Best Practice Guidelines for Immunization
• CDC — Fever and Cancer Treatment
• CDC — Prevention and Control of Seasonal Influenza with Vaccines: ACIP Recommendations (MMWR)