I had lesions on my hands and my feet. They were a bit larger a appeared quite a bit deeper than those on your hands and feet. Either way, I know how painful these lesions can be. My feet were so swollen that I had to purchase shoes two sizes larger and wear them with thick, soft socks just so that I could walk.
The medication that helped my lesions was Plaquenil. It took several weeks before it started to work, but once the lesions healed, they never returned. Imuran is one of the treatments used when the lesions do not respond to Plaquenil. Imuran also must build up in your system before you will see results, most have had very good results however.
I hope that you are able to get some relief from the lesions soon! I wish you the best!
Peace and Blessings