I've probably posted elsewhere a while ago BUTT a few meds and tips from my early days of chemoradiation, sacral abscess and post takedown :
topical ointment called Glaxal Base, soothing, non medicated, hypoallergenic and what pharmacists use to "compound" other ointments so it is non-staining and non reacting. For heavy duty protection and waterproofing -> ZincoFax type ointments but they are messy.
Medicated ointmets or suppositories ( check with the doctor ) Proctosone / Proctomyxin types have a combo of antifungal, antibiotic, cortisone, surface protectant, analgesic ( lots of varieties available by prescription. ) Calmoseptine has been recc'd here ( never used it )
non-medicated / non-scented baby wipes ... YES !
sitz baths, bidet ( I had one in the house already ... HUGE saver of butts ! ) or the BioBidet toilet seat which adapts to an existing toilet and provides " flush the tush and blow dry capabilities "
I even hear there is a Japanese model which gives you a spritz of your fave cologne