Blood in stool white pimple looking things on anus and descoloration of the skin around the anus. itches at some times and causes it to smell backther?

Possible infection: While it may be nothing serious .... There is the possibility that there is an underlying anal infection (abscess) ... Possibly cause by an anal fistula (small connection into the anus). Try a protective ointment - like anusol - and warm baths with epsom salts. However, if it persists, do see a proctologist who can properly diagnose your condition. All the best, peter wilk, md.