How is there a red dot on the man's glans?

There are red spots on the glans, which may be caused by inflammation of the glans or allergic diseases. Balanitis has a certain relationship with men who don't have sex and don't pay attention to cleanliness after sex. There will also be edema and itching of the glans penis, which can be treated with erythromycin ointment for anti-inflammation. Allergic diseases of glans penis are often caused by contact with some allergic things, such as wearing newly bought underwear and touching pollen, which may lead to red spots on glans penis and extremely itchy.