They should not use any lotion or cream on the skin without the doctor's advice. Patients may have other side effects, depending upon the areas treated. For example, radiation to the lower back may cause nausea, vomiting, or diarrhea because the lower digestive tract is exposed to radiation. The doctor often can prescribe medicine or suggest changes in diet to ease these problems. Side effects usually disappear gradually after radiation therapy is over.
Loss of appetite can be a problem for patients with multiple myeloma.
People may not feel hungry when they are uncomfortable or tired. Some of the common side effects of cancer treatment, such as nausea and vomiting, can also make it hard to eat. Yet patients who eat well often feel better and have more energy, so good nutrition is important. Eating well means getting enough calories and protein to prevent weight loss, regain strength, and rebuild normal tissues. Many patients find that having several small meals and snacks during the day works better than having three regular meals.