Hi. Thanks for your query and an elucidate history. I have read your history and understood your problem. The commonest cause of anal itching are as follows: -Perianal excoriation of the skin around the anus. -Intestinal infection- particularly of the large bowel called colitis. -Fissure in ano - Dermatitis of the skin around anus. I wold advise you to consult a Gastroenterologist for proper examination of the problems, to get a proper clinical diagnosis for planning a treatment. Clean the area with plenty of plain water and to keep the area dry and aerated. No tight clothes to be worn. Take a course of an antibiotic and metronidazole and probiotics for 5 days, take multivitamins for akin healing properties. High fiber diet. Avoid all the foods and beverages and stress-like conditions which gives constipation. Laxative for softening the stool- never allow the dose too much to cause liquid stools. Sitz bath- very important- just before passing a stool and after passing a stool. Clean the area very clear of the fecal soiling that remains after cleaning; use cotton soaked in the same water to clean. You can apply liquid povidone iodine locally. Apply nothing else. This will help you to get cured.