Lisa,,hey join the club
(( altho right now I have no PF dogs.
What I would do right now,,shave his butt good, Definately have the glands checked out, sometimes pf results from an anal gland infection, (which both mine were from) vs true PF's.
Don't want to bum you out more, but since Max has alot of other issues, well, if pf's are gonna show up, you'll find it does on dogs with allergies, ibd, sibo, o ther issues
DESITIN! You can try it, alot of us "pf'er's' have had success in clearing up reoccurances with Desitin,,(the zinc oxide),,,I put it on a q tip and apply IN and around the area a couple times a day,,
Most importantly, you wanna keep that area clean and dry if possible...
Diet is important, (your doing good there),,pumpkin (canned) could help...
ask away,,definately join te PF group..hey whats one more email list?? Good luck