The redness on the glans may be caused by over stimulation, circumcision, allergy and other factors, should reduce the stimulation, there are infections and allergies, but also should use the appropriate drugs for treatment. 1. Excessive stimulation: for example, frequent masturbation, should quit masturbation, and reduce the number of times of sex, reasonable rest, pay attention to the glans area hygiene, usually can be self-healing. 2. Glans penis: For glans penis, you can use topical antibacterial drugs for treatment, such as erythromycin ointment, clotrimazole ointment, etc., and to wash the glans on a regular basis. 3. Allergy: For the redness of the glans caused by allergy, you should avoid contact with allergic substances and improve the symptoms of itching by using topical drugs such as trimethoprim cream, as well as oral antihistamine treatment, such as cetirizine, loratadine and so on. During the treatment, follow the doctor’s guidance, safe and reasonable use of drugs, do not indiscriminate use of medication.