Itchy red bumps are considered allergic diseases, such as urticaria, eczema, atopic dermatitis and solar dermatitis, most of which can be relieved by anti-allergic treatment. 1, hives look like a mosquito bite red plate bag, but can subside within a few hours on its own, leaving no trace, that is, this and that, the rise and fall of the red bumps. It is recommended to take imipramine tablets orally, 1 tablet per night, generally 7-10 days to cure. 2, eczema more than the cause is unknown, can not find a clear allergen, some patients have dry skin peeling performance, can be called eczema, dry eczema. It is recommended that the external use of Fu Yan Ning, oral loratadine tablets. 3, allergic dermatitis: and eczema is not very different, there may be a clear allergic cause, such as eating certain foods, drugs. Or paste the paste, by the mosquito bite, etc.. You should stop suspicious food, stop touching the paste, and go to places where there are many flowers and insects. 4, solar dermatitis treatment method is the same as allergic dermatitis, allergens are ultraviolet light, during treatment pay attention to prevent light, do not eat photosensitive food. The first thing to do is to look for allergens, and actively avoid them if there is a clear cause, so as to avoid recurrence. In addition to the above drugs, life pay attention to not eat spicy stimulation, especially seafood, fish and shrimp alcohol, not hot wash not scratching, not to stimulate the skin.