What foods can you eat if you have allergic purpura?

At present, the safest choice in clinical practice and patient practice is to first eat light foods that you have eaten before, have no allergic reactions, and are generally hypoallergenic during the acute stage, such as white rice, white flour steamed buns, stir-fried cabbage and winter melon, steamed potatoes, and peeled steamed apples.

But don’t trust the “generally safe recipes” that list dozens of kinds on the Internet. Last week, I met a 10-year-old patient. His mother added broccoli to him according to the list on the Internet. As a result, a new purpura appeared on the same day. After checking the allergens, I found out that he is sensitive to the photosensitive ingredients in broccoli. Others can eat it fine, but he can’t.

There are actually different opinions in the industry on the scale of taboos. Some doctors advocate strict restrictions in the acute phase. Except for the most basic rice noodles and a few light-colored vegetables, meat, eggs, and milk should be stopped. Wait for 2-4 weeks to completely stabilize before adding them one by one.； Some doctors also believe that as long as the foods are not allergen-positive, there is no need to deliberately avoid foods. On the contrary, the avoidance of foods will lead to insufficient nutritional intake and will slow down recovery. Both opinions are supported by clinical data and there is no absolute right or wrong.

Most of the patients I interact with actually choose the more secure middle method. If you still have abdominal pain or blood in the stool at the beginning of the attack, you should stop eating rough vegetables first and drink clear rice soup and white porridge for two days. After the gastrointestinal reaction subsides, you can slowly add steamed potatoes, For things like stir-fried winter melon, if no new red spots appear after eating for two or three days, add a small amount of lean pork, and then try eggs, milk, and other vegetables one by one. Observe each addition for 3 days. If there is no abnormality, continue. If there are no abnormalities, stop for a few months and try again. The probability of a surprise is much lower.

By the way, there is another point that is easily overlooked. Even if it is food that you usually eat and are not allergic to, don't eat food that is too cold, too spicy, or heavy with oil and salt. Last month, there was a sophomore girl who was almost recovered when she was discharged. She went to eat iced crayfish with her classmates, and more than 20 new red spots appeared on her legs that night. She regretted it when she came over for a review. After all, allergic purpura is essentially an IgA-mediated inflammation of small blood vessels, not an ordinary food allergy. The core of food taboos is to avoid allergens on the one hand, and to reduce stimulation of blood vessels on the other. Irritating foods will dilate blood vessels, and can easily aggravate symptoms even if you are not allergic. This is something you really need to pay attention to.

In fact, to put it bluntly, safe foods that are suitable for others may not be suitable for you. Instead of copying recipes everywhere, it is better to keep a food diary yourself, what you eat, whether there are any new red spots, and slowly find out your own tolerance boundaries. This is more reliable than anything else.