Another disease to add to the list

I've had an open sore in my armpit for about 2 months now. Dermatology has, until a couple days ago, been unable to explain it. Finally I saw a different dermatologist, and was able to get a diagnosis. I have an autoimmune disease called pyoderma gangrenosum, or PG for short. It's a disease that attacks the skin and opens up ulcers that are extremely painful. Having had to experience it, I can definitely say that they are painful. If I move my right arm at the shoulder, it feels like the skin is being ripped apart. The smell is like a rotting body. It is constantly oozing fluid. No bandages stay on with it being in my armpit, and the hole keeps growing. Surgery and stitches are out as apparently, they would only make the situation worse. So on top of muscular dystrophy, missing brain matter, asthma, chronic migraines, and a whole host of psychological issues, now I get to add this to my resume. And I'm also at this moment (7-1-21) battling a chest cold from the foulest layer of Hell. Can something please just kill me instead of piling more crap on top of me? There's only so much a body and mind can take, and I'm at my limit. Let me break a bone or something. Don't give me another damn disease. If I get diagnosed with another disease, my body is probably gonna say "Screw this. I'm outta here."  It's starting to seem like the only thing I don't have is hair. I was numb before, but for the love of the Gods, give me a break, PLEASE.