I Had Surgery For A Thrombosis Hemorrhoid In April. I

i had surgery for a thrombosis hemorrhoid in april. I still have residual skin on the outside which gets inflamed burns and itches. i have used steroids, tucks, mupricin, etc, taken baths, and tried to keep the area clean. i am now using critic care paste to protect the area from feces. But i find i have feces still in the anal canal after a BM and that causes tremendous itching. any suggestions?