Patient Question: Illness: Premature ejaculation Description: Ejaculation occurs less than 1 minute after penile penetration into the vagina in most cases. How to change the glans sensitivity. Reply: 1, if the foreskin is too long, it is recommended that surgery, so that the glans is exposed, and friction with underwear can reduce glans sensitivity; 2, you can temporarily use topical anesthetics to reduce glans sensitivity; 3, oral medication, it is recommended that a combination of Chinese and Western medicine treatment, may be more effective.