Why does penis foreskin becomes sensitive after sexual arousal? it has been 4 days n my foreskin is still sensitive. how much more time b4 it's normal

Unclear ...: What you described seems indicating the annoying sensation has been gradually diminishing over the past 4-5 days; if so, time & patience will tell, of course, keeping on not further inciting local physical stimulation in any way. Meanwhile, do you have any local inflammation, which is commonly related with long tight foreskin. So, seek evaluation and counseling as needed.