Proctitis/ Canasa

hello,
after years of annoying issues and then seemingly continuous blood in the toilet, a colonoscopy almost 2 years ago showed i had proctitis. i was prescribed canasa and have probably had to use it 3 times a year since.
since march i have been almost symptom free. i would have mucus every so often but was very regular and no blood. suddenly about 2 weeks ago i had one instance of urgency and cramps and that was the start of a new flare. since then blood each time i go but no other issue other than feeling like my stomach felt "raw" ( thats how it always feels to me during flares). i started canasa last friday 11/6. a few days in the blood stopped, but came back after a few days. in the past the bleeding stopped after a few days and didnt return until the next flare. i have 4 left of my 14 day prescription of suppositories and one more 14 day prescription.
have you had it take longer than 2 weeks to get under control? i feel fine and never had any more urgency trips or cramps. i was anemic when i was first diagnosed and dont want to go through that again so that is my only concern.
any help is appreciated!