Skin allergies can be improved by avoiding contact with allergens and desensitizing treatment if necessary. 1. Avoid contact with allergens: For mild, occasional allergies with a clear cause, skin allergies can be improved by avoiding contact with allergens. If the cause is unknown and the allergy recurs over a long period of time, you can go to the hospital to improve the allergen test and avoid the triggering factors after clarification. The results of allergen screening should be judged comprehensively, and false-positive and false-negative results may occur, so it is necessary to combine with one’s own actual situation. 2. Desensitization treatment: For patients with long-term recurrent allergies, desensitization treatment can be considered after clarifying the allergens, and it takes 2-3 years to complete the treatment course. For mild, occasional, no desensitization treatment is necessary. Skin allergy can cause more types of skin diseases, if skin allergy, should go to the hospital in time.