I have a charcots joint in my ankle. What are some of the treatments?

Seversal things. Abrace can be fabricated to support the ankle, surgery can be performed to fuse the joint. Possible ankle replacement.
Brace. Crow boot, custom afo. Are some options.
CANCER. Please see your primary care physician. Blood in the stool has many causes the most severe being cancer or tumor formation. Seeing as you are also constipated there is a chance that your bowel (intestine) is obstructed.