Sweating on the forehead is particularly itchy, may be prickly heat, eczema and other conditions, the specific treatment needs to be based on the cause of the symptomatic treatment. 1. Prickly heat: The main symptom of prickly heat is the appearance of small blisters or pimples on the skin, and some patients will have tingling or itching. Prickly heat occurs in hot and stuffy environments. The retention of sweat in the sweat ducts may cause inflammation leading to the formation of prickly heat. It can be treated with medication under the guidance of a doctor, topical glucocorticoid drugs such as hydrocortisone, etc., combined with antihistamines such as cetirizine when itching is significant. 2. Eczema: Eczema in the forehead area can also lead to localized itching, which can be exacerbated by sweat stimulation. It can be treated with glucocorticoid drugs such as mometasone furoate or topical calcineurin inhibitors such as tacrolimus under the guidance of a doctor. Combined oral antihistamines such as loratadine, ebastine and other treatment. It is recommended that patients go to the hospital in time, clear diagnosis and follow the doctor’s instructions for medication, so as not to delay the condition.