This does not sound like fissures. Fissures are best identified by the feeling of "crapping razor blades". What you have sounds more like a hemmoroid and possible yeast infection. If the itching is driving you mad, it's probably yeast so see your GI. If it's mile you can try some OTC ointments.
dx proctitis in 1987
dx UC in 1991, was stable until 1998
1998 started prednisone, asacol, pentasa, nortriptylene, ativan, 6MP, rowasa enemas and suppositories, hydrocortisone enemas, tried the SCD diet, being a vegetarian, omega 3s, flax, pranic healing, yoga, acupuncture, probiotics
2000 lost all my B-12 stores and became anemic
2001 opted for j-pouch surgery- now living life med-free