Diltiazem 20mg/gm ointment. This is a compound med. Really helped with Fischer's.
Other creams less expensive hydrocortisone acetate 1% pramixime HCI 1% cream.
OTC: A&D ointment. Considering ur situation this might help & sitz baths. This is cheapest option. I also use this fiber powder: psyllium husk powder . You can get in health food store. Really makes the bowel soft not diarrhea. Easy on the rectum when expelling.
I hope this helps.