Brown marks on the inner thighs at the tops of both legs brownish/black in colour what is it and how do I get rid of it.

Laser treatment. Go see a doctor because there isn't anything otc that would get rid of that.

This rash started on Saturday on the tops of my feet. I now have it up the legs and in patches on my arms. Yet I don't have it on my body. Help what could it be?

No way to know without looking at it. Contact a Physician and ask.

You've been posting this or variations of it on various threads since June. Please see a Physician.

I have asked that your threads be combined.