Too much Burning. Is the right term) ?

In the photos given is the the problem I'm suffering from. It itches a lot along with a burning sensation. What's that? I'm referring to the problem as a thing. So, that thing is been a troublesome and a lot. It's around lower abdomen and back. It's painful. Any sensitive touch results in a burning sense, etc. Doctors aren't available in the locality. Also to be added, I have no fever. This thing is there since more than a week now! What should I do to ease the thing and let it go indeed dry soon (I don't know whether dry is the right term)? An ice pack for some time soothes the pain bringing some temporary relief and I have been cleaning the area with Dettol. And I would also like to know what that thing is! I would like to suggest not to advise any tablets please.