I started Bactrim DS last night for a suspected prostate infection and
also possible kidney infection.

I have only taken two pills but already am feeling not quite right.

Main Symptoms:
Swollen tongue with white film on it
Top of right arm feels very warm as if I had a mild sunburn (but
little or no visible redness).

I have called and left a message for my doctor but in the meantime
wanted to get some opinions here.
Does anyone know if these kind of side-effects mean that I should stop
taking it?

I know skin reactions are fairly common but there are also less common
life-threatening conditions like SJS and TEN.

Input would be appreciated.