Mysterious skin shedding

Last weekend I caught some rays down at the pool. I had been taking Rifampin for about a week at this point. I noticed after the pool that I had a weird-looking sunburn even after relatively little exposure. A few days later I had this skin peeling/sloughing situation you see here, only on my arms and legs. Nothing on my back or front torso, which were also exposed to the sun for the same amount of time. 

If you have had skin peeling during Rifampin usage, please comment.

Shin

Upper arm

Forearm