If you are having radiation treatment to the stomach or some part of the abdomen (belly), you may have vomiting, nausea, or diarrhea. Your doctor can give you medicines to help relieve these problems. Check with your doctor or nurse about any home remedies you are thinking about taking during your treatment.

Managing nausea

Some patients report feeling queasy for a few hours right after radiation therapy. If you have this problem, do not eat for several hours before your treatment. You may be able to handle the treatment better on an empty stomach. After treatment, you may want to wait 1 to 2 hours before eating. If the problem persists, ask your doctor about medicines to prevent and treat nausea. Be sure to take the medicine as prescribed.

If you notice nausea before your treatment, eat a bland snack, such as toast or crackers, and try to relax as much as possible. Here are some tips to help an upset stomach:

• Stick to any special diet your doctor or dietitian gives you.
• Eat small meals.
• Eat often and try to eat and drink slowly.
• Avoid foods that are fried or high in fat.
• Drink cool liquids between meals.
• Eat foods that don't have strong smells and can be served cool or at room temperature.
• For a severe upset stomach, try a clear liquid diet (broth and juices) or bland foods that are easy to digest, such as dry toast and gelatin.
• Learn deep breathing and relaxation techniques, and try them when you feel nauseated.

Please call us or visit our Web site for more information on how to manage nausea and vomiting.

How to handle diarrhea

Diarrhea most often begins a few weeks after starting radiation therapy. Your doctor may prescribe medicine or give you special instructions to help with the problem. He or she may also recommend changes in your diet, such as:

• Try a clear liquid diet (water, weak tea, apple juice, peach nectar, clear broth, popsicles, and plain gelatin) as soon as diarrhea starts or when you feel it is going to start.
• Avoid foods that are high in fiber or can cause gas or cramps, such as raw fruits and vegetables, coffee, beans, cabbage, whole grain breads and cereals, sweets, and spicy foods.
• Eat frequent small meals.
• Avoid milk and milk products if they irritate your bowels.
• When the diarrhea starts to improve, try eating small amounts of low-fiber foods such as rice, bananas, applesauce, yogurt, mashed potatoes, low-fat cottage cheese, and dry toast.
• Be sure you take in enough potassium (bananas, potatoes, apricots, peaches), an important mineral you may lose through diarrhea.

Diet planning is an important part of radiation treatment of the stomach and abdomen. Keep in mind these problems will get better when treatment is over. In the meantime, try to pack the highest possible food value into even small meals so you get enough calories, vitamins, and minerals.

Last Medical Review: 12/23/2008
Last Revised: 12/23/2008