There are many types of skin rashes, and you can choose the right medication after clarifying the disease. Common diseases such as eczema, prickly heat, insect bite dermatitis and so on can cause skin rashes. Glucocorticosteroids, antibiotics, antihistamines and so on can be used to eliminate the skin lesions, but the effect of drugs varies from person to person and there is no so-called rapid elimination method. 1. eczema: for the acute stage without exudate or exudate is not much, can be applied glucocorticoid treatment, such as mometasone furoate ointment; exudate more, can be used externally with boric acid solution wet compresses; secondary infection, can be used externally with antibiotic treatment, such as erythromycin, mupirocin, etc.. 2. Prickly heat: external glycerin lotion, prickly heat powder and other anti-itching treatment; itching is serious, oral antihistamine treatment, such as loratadine, cetirizine and so on. 3. Insect bite dermatitis: if the inflammation is mild, glucocorticoid therapy can be used externally, such as hydrocortisone cream, etc.; internal antihistamine therapy, such as loratadine, cetirizine, etc.; lesions, allergic reaction is serious, short-term oral glucocorticosteroid therapy in small doses, such as prednisone. It is recommended that patients go to the dermatology department of the regular hospital, after diagnosis, under the guidance of the doctor reasonable use of medication to avoid delaying the condition.