Treatment principle: When the water breaks out in heavy cases: yellow medicine water 1:1 diluted wet compress, then topical application of compound zinc oxide. At this time can not get wet. When it is lighter, there is no water flowing only red papular rash peeling and so on with topical chloramphenicol + Youzol. If the head yellow scab is thicker, you can first use emollient oil or something to dissolve the scab, and then choose topical medication according to the severity. If the eczema is heavy or large or progressing significantly, take oral medication to control it; if it is lighter, treat it with topical treatment alone and pay attention to prevention when it is not. If you have had acute urticaria or anaphylaxis, your allergies are serious, and if you did not have vaccinations or inflammation in your body at the time, it is likely to be caused by diet. If you have a cold or flu in the future, treat it promptly so as not to cause asthma. Allergen testing is needed to find suspected allergens, and venous blood needs to be taken. Food allergy may have two situations: 1, after eating something in a short period of time the whole body rash, or the original rash significantly aggravated, this situation indicates that there must be allergies, this kind of thing is generally six months to a year can not eat again. 2, ate apples and such also rash, may just eat the mouth after contact with the stimulation of this thing, because itself has eczema skin is not good, so this situation is more common, if this is the case, this thing can still eat, just try not to rub the skin, timely cleaning can be. So fill in the complementary food mastery principles: a single small amount to add, add a few days to observe no obvious reaction before adding another.