The condition of small transparent blisters on the neck may be due to insect bite dermatitis, prickly heat, contact dermatitis, and can be treated with antihistamines, topical glycerite lotion, glucocorticoids and other drugs. 1. Insect bite dermatitis: patients may be bitten by insects on the skin may cause local inflammatory reaction, manifested as pimples, small blisters, accompanied by itching symptoms. You can cooperate with your doctor to choose antihistamines such as loratadine and cetirizine, and use topical glucocorticoid drugs such as mometasone furoate for treatment. 2. prickly heat: in the hot summer, patients may be due to the sweat gland ducts blocked, thus the phenomenon of prickly heat, in addition to the red rash, may also be manifested as localized blisters, accompanied by itching and pain symptoms. Glycerin lotion and prickly heat powder can be used externally, and oral antihistamines can be taken to relieve itching. 3. Contact dermatitis: mainly due to skin contact with external substances and triggered by inflammatory skin diseases, there will be erythema, pimples, blisters, etc., exudation is obvious when the first use of boric acid solution, wet compresses, oozing to reduce the topical glucocorticosteroid medication can be used with the doctor. Specifically need to go to the hospital, clear diagnosis and follow the doctor’s prescription medication.