There are various conditions of cutaneous purpura: a. Consider it may be allergic purpura. The treatment of allergic purpura is mainly anti-allergic, reduce vascular permeability and other treatment, anti-allergic can apply cetirizine tablets or loratadine granules and so on. If it is children, it is recommended to apply cetirizine syrup, cetirizine drops and so on. The drugs that reduce the vascular permeability can be chosen from vitamin C. Topical glucocorticoid creams, such as mometasone furoate cream, can also be used topically, together with the topical application of furnace glycolic lotion. If the allergic purpura is combined with visceral damage, it needs to be treated with prednisone tablets or fosinopril sodium, etc. Second, consider that it may be pressure purpura. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. There are other conditions that may appear purpura, it is recommended to visit the hospital for an interview.