Hi Shiela, Just wondering if you would benefit from a more potent blood thinner. Aspirin is not enough to get oxygen to the wound. Maybe just a trial on something like Xarelto would be a thought. Also, some wound care studies have suggested the an eye drop called Timolol Maleate , your doctor would know what it is, placed on the ulcer a few times a day has been shown to improve blood flow to the wound. The drops are a prescription but are not expensive.
Wishing you better treatment, Zenk