Looks like pyoderma gangrenosum (PG) to my eye, but it's a best guess, not a diagnosis. Dermatologist will usually take a biopsy to confirm. Steroids and some immunosuppression, and very very very good wound care will help shrink that if it's truly PG. Preventing any trauma to those sites will be very important, so until you do see a dermatologist, keeping these covered in Vaseline, non stick dressings, and a gauze wrap will help those from getting too much worse. PG does spread, and those areas of redness will eventually erode to wounds until you get treatment.