What Causes Red Spots On Penis During Intercourse?

Befor 40 year during sex to girl friend i sceen one or to red small syamtams in penies i take pencelian injection, teramycin also not clear still during hot sesion two three time it appear sam.i used neoromycin ontiment it help to narmal condition know a days i feel weeknes for sex problems urine . I am 62 year old