Itching all over your body in the summer can be caused by insect bite dermatitis, hives or eczema. You can take general treatment and medication to relieve it. 1. Insect bite dermatitis: also known as papular urticaria, usually triggered by insect bites, an allergic disease characterized by doughnut-like papules, accompanied by intense itching. Can be used externally with glycerite lotion, etc., combined with the infection can be used mupirocin ointment, etc., the itching is obvious can be taken orally antihistamine drugs, such as loratadine. 2. Urticaria: It is a prominent skin surface of the wind, accompanied by itching. Can be used externally with glycerine lotion, oral antihistamine drugs, such as loratadine, etc., combined with angioneurotic edema need oral glucocorticoids, such as prednisone. 3. Eczema: there may be erythema, papules, papules, may be accompanied by oozing vesicles or hyperkeratosis. For different lesions, different ointments can be applied, generally can be used externally glucocorticoid ointment, such as tretinoin cream, etc., at the same time oral antihistamine drugs, such as loratadine. There may be other reasons for itchy body in summer, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment. All of the above medications should be used under the guidance of a doctor.