FLhopeful, sorry to hear about your problems with fissure and a terrible doctor.
Is hard to find good doctors this days, I was lucky that my primary doctor did the job for me and I can not complain.
Is plenty of information here about how to deal with inconvenience and painful side effects of fissures.
As soon as you can you need to see another doctor so you get the proper cream for healing, sadly the nitro cream works for me in relieving the spams but it took me a while and at the end I had side effects from it and had to stop.
My fissure is also 8 months old but is doing good enough for me to learn to live with it and is under control, is still there but now sometimes i can even forget i have it.
Is not and easy road to recovery with this problems but it can became less stressful.
Now if you after all this months are still having so much problems perhaps you may follow the advise of the new doctor you will be seeing and work with him.
I wish you luck and a fast recovery.