The worst days after chemo are typically 3-5 days post-treatment, peaking with intense fatigue, nausea, and general malaise as white blood cells drop (neutropenia) around days 7-14, making infections a major risk, but side effects vary greatly by drug, dose, and individual, with some issues like mouth sores appearing days later.
Chemotherapy can damage the rapidly dividing cells in the mucous membrane and make them inflamed. This is called mucositis. While mucositis can affect any mucous membranes in the body, it most often affects the GI tract. This can lead to painful ulcers, bleeding and infection.
Some urinary or bladder changes may be normal, such as changes to the color or smell of your urine caused by some types of chemotherapy. Your health care team will determine what is causing your symptoms and will advise on steps to take to feel better. Irritation of the bladder lining (radiation cystitis):
Feeling and being sick
But not all chemotherapy drugs make you sick. If they do, it generally starts from a few minutes to several hours after having the drug. With some drugs, the sickness lasts for a few hours, or until the next day. Sometimes it can last for several days.
When are you most at risk? Your risk of getting an infection is highest when your neutrophil levels are low. This is called the nadir. This usually begins around 7 to 14 days after each treatment.
The side effects from chemotherapy tend to be the worst the day after it's administered. “If you're on a strong chemo regimen, usually the day after is when you'll experience the worst symptoms,” says Iheme. “By worst, I mean you'll experience the most fatigue, weakness and nausea.
12 chemotherapy tips from cancer patients who've been there
Staying hydrated after chemotherapy is important for the prevention of side effects. Drinking enough water and fluids will help to flush out some of the toxins that are released during chemotherapy or radiation therapy as well as help prevent future health problems.
You might notice an improvement in cancer symptoms, such as less pain, reduced lymph node swelling, and improved energy levels. If you use topical chemotherapy on skin lesions, the area might feel irritated and look red and swollen for the first few weeks. These are all signs that chemotherapy is working.
During and after cancer treatment with chemotherapy, up to 75 percent of people experience thinking and memory problems known as “chemo brain.” [2] Chemo brain can also cause anger — a phenomenon sometimes called “chemo rage.”
After chemotherapy treatment, the chemotherapy drug usually remains in the body for either 3 days or 7 days, depending upon the properties of the drug. The drug is excreted in the urine, stool, vomit, semen, and vaginal secretions during this time.
Some chemo is injected into your pelvis or bladder. This can cause pelvic irritation and make sex painful until your body heals. Chemo injected into your bladder: This treatment usually only has a minor effect on a woman's sex life. But you might notice some pain during sex if your bladder and urethra become irritated.
The doctor may alter the treatment when patients cannot tolerate the current chemotherapy cycles. It may include lowering the dose of the drugs. It will reduce the side effects and allow patients to complete the chemotherapy cycles.
The normal cells most likely to be damaged by chemo are:
Burning stomach pain.
This is the most common ulcer symptom – and it's not subtle. “It's usually a gnawing or burning pain in the upper abdomen,” says Dr. Sanowski-Bell. “You'll often feel it between meals or at night.
The cancer is actively growing despite the treatment. Blood tests that track proteins made by cancer cells show a consistent rise. The overall cancer activity in the body is increasing. Symptoms like pain, fatigue, or breathing issues are getting worse instead of better.
Complete response - all of the cancer or tumor disappears; there is no evidence of disease. A tumor marker (if applicable) may fall within the normal range. Partial response - the cancer has shrunk by a percentage but disease remains. A tumor marker (if applicable) may have fallen but evidence of disease remains.
Typically, in trials, the frequency of follow‐up scans is every 6‐8 weeks or every two cycles of therapy, although this varies with tumor and treatment type.
A complete blood count (CBC) is a blood test done to help your child's doctor or health care provider know more about their condition.
For a snack that will fill you up until the next meal, try to include protein along with fiber-rich fruits, vegetables, or whole grains. Low-sugar, 100% whole-grain cereals and fruit. You can pick up low-fat or non-fat milk or yogurt at a store or coffee shop to go with it.
Treatment side effects, such as fatigue, can keep you sidelined. When you feel up to it, find a gentle activity that feels good to you. For example, take a walk around the block. Do what you can, and remember that rest also is important to your recovery.
You are being treated for cancer with a chemotherapy medication called Oxaliplatin. This medication has an unusual side effect called “cold dysesthesia”. This means that different parts of your body may be very sensitive to cold – cold drinks, cold food, and cool or cold outdoor temperatures.
15 Essentials for Chemotherapy Comfort
Eating small portions slowly and every few hours seem to work best. Avoid foods that are fatty, greasy or spicy on chemotherapy days, as these may not be well tolerated. Make sure to eat a meal or snack prior to your infusion and avoid skipping meals, which can worsen nausea.
Flat carbonated beverages (e.g., ginger ale) may help settle an upset stomach. Popsicles (unless advised otherwise for specific chemo drugs like oxaliplatin). Prune juice and hot drinks may aid bowel movements if you're constipated. Moist foods like soup, yogurt, sherbet and fruit-flavored gelatin can also help.