Itching of the legs in summer is considered a high possibility of summer dermatitis, which is caused by the continuous hot and muggy summer heat. The main manifestation is the appearance of red spots and papules on the lower leg area, sometimes accompanied by oozing and itching. The main treatment is to pay attention to ventilation and cooling, wear loose and breathable cotton clothing, keep the skin clean and dry, avoid sweating. You can use topical glyburide lotion or glucocorticoid cream, such as hydrocortisone butyrate cream, mometasone furoate cream; if itching is obvious, you can also take oral antihistamines, such as loratadine, cetirizine, epothilone, etc. Be careful not to scratch excessively, so as not to break the infection. If infection occurs, anti-infection treatment with fusidic acid cream and Bactrim cream should be given first, and then topical application of furnace glycolic lotion should be given after the infection is controlled.