I would also recommend soaking the feet in Epsom salts. That could help soothe and promote healing. Take some new pictures. Apply some antibiotic ointment to the feet beofre applying a new dressing. We still don’t really know what the cause is of the feet problems, so pictures of the whole ffet and ankles and the foot pads would be helpful. Several things have been discussed on your thread, from frostbite, gout, mycoplasma joint infection, and bumblefoot.