Your new doctor seems to be following all the correct protocol. I know you hate doing another colonoscopy but her reasons sound justified. You might not have 6 months for 6mp to kick-in but if the colon isn't that bad you can start the 6mp and maybe avoid the Remicade? Yes, if you opt for Remicade it is a long term treatment.
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