If I haven't been put up for med board, should I ask?

So when I joined the Corps I started getting a bad rash at boot camp, they said it was athletes foot etc. It's been going on for over a year, I've been to medical since the start going almost every month, getting athletes foot cream, they then switched it to atopic creams and steroid creams, which did not help whatsoever. Saw a doctor on leave and diagnosed it as eczema. Then when I got back to the unit I saw a dermatologist that did a biopsy and the lab came back that it is contact dermatitis. The dermatologist concluded that I was most likely allergic to the combat boots. Over the time I've been in I've tried different socks, different boots, giving them weeks-months to see if over time I'd heal and it hasn't. Medical hasn't mentioned once about a med board. My feet bleed everyday from it and it effects and prohibits me from preforming my duty.

I also sustained a TBI during a unit PT exercise and the medical at my other unit did nothing, gave me Ibuprofen and said to "give it time to heal" but no light duty, quarters etc. I got to my new unit and saw the doctor and got sent to neurology. Assuming that it comes as memory loss (which is what I think I have) it effects me doing me duties as I'll forget stuff or be told something and then forget to do it or that I even did do it.

Would me be asking the doctor for a med board be a good idea or bad idea? I'm not sure how it works, I assumed usually they are supposed to bring it up otherwise they think you're trying to pull a fast one, but I have all the documentation and proof of it. My biggest issue is if something happens to other Marines bc I wasn't able to preform my duties and they wind up getting hurt for it.