A lot of small particles grow on the forehead in summer, considering that it may be due to prickly heat, folliculitis, eczema and other factors, can be given life management, topical medication, oral medication and other methods of relief. 1. Prickly heat: usually occurs in hot summer, mainly due to the blockage of small sweat glands in the ducts, a large amount of sweat is not easy to evaporate, it will lead to skin cells and debris blocking the sweat ducts, and then prickly heat, can be given to the skin cooling, drying and other treatments, prickly heat will soon disappear. 2. Folliculitis: This is an inflammatory skin disease mainly involving hair follicles, mainly associated with sebum and sweat secretion in the forehead area in summer, followed by bacterial infections, after diagnosis, you can cooperate with the doctor to choose iodophor solution, fusidic acid, mupirocin ointment coating treatment. 3. Eczema: This is a chronic inflammatory itchy disease, mainly associated with contact with allergens, irritants, microbes and other factors, can be used with the doctor with external glycerine lotion coated with oral loratadine, cetirizine and other antihistamine treatment. Summer forehead grows a lot of small particles of the situation may also exist other reasons, if necessary, can cooperate with the doctor for examination, and give standardized treatment.