Hi I have a five year old female bulldog who is my best friend about six months ago right beside her tail she developed what looked like a cut for four months I would watch it bleed then puss would come out not knowing what it was I took her to the vet and found out she had perianal fistula I don't have the money for proper medicane right now so I went to my doctor said I have it cause my meds are free he gave me Diltiazem does anybody know if that will work? She also has developed like bumps on her vulva does anybody know anything that can help?