[Skin Concerns] Recovering from years of very poor hygiene

Beauty Tips For Body Care
Hi, I'm a guy recovering from poor hygiene and eating habits during years of mental illness. During these years when I would shower like once a week, I would only do so for like a minute and just run the water through my body a little bit. I've come a long way since then I think, but because of my poor hygiene during those years I have a lot of really noticeable and dark dead skin built up all over my torso (particularly my back). To get rid of the dead skin I've been using a big brush (loofah?) that has helped me a lot, but I've been having trouble getting the last bit of dead skin off. It seems it's really caked in and tough to get out unless you go ham with scratching it off, which I don't want to do all over my back because it might damage my skin.My armpits still have a lot of this dead skin and it seems to be near impossible to get it off with what I've been trying. Around my armpits there is some discoloration that doesn't seem to be dead skin because nothing is coming off. Again, it might actually be dead skin and it just straight up isn't coming off at all. I am overweight by like 70 lbs packed on during those years, does that have anything to do with this? I've been losing weight (25 pounds lost so far since the beginning of this year), I'm assuming that will help with some of these problems.Also, it seems that even though I've gotten the dead skin off of most my body, I can still make little lumps of dead skin appear by scratching or rubbing the seemingly clean parts of my arms/torso. I'm not sure what's up with that. Is that normal? It only seems to really happen with clean parts of my body if I've just showered, so maybe it's okay.What would be a good product to get rid of the remaining dead skin? Does anything get rid of discoloration that is not dead skin? Is there anything specific I should be doing? Would seeing a dermatologist or someone be good for this?
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Submitted by Fizzleberry