I hope this is the right thread to post this in, but for the last few months I seem to have a bit of a rash on the backs of my arms. Nowhere else, just those areas.

I dont juice, and as for suppliments I use I take whey protein, creatin, glutamine and a shit load of food.

Does anyone know what this could be and if anyone else has got it.

Already im getting idiots saying "Oh he must be on the juice, look at the back of his arms"