There is no relation between eating wheat grains and acne, though acne is worsened by foods having high glycemic index i.e. The ones which increase blood sugar levels suddenly e.g. Chocolates, sweets, soft drinks etc.

Hey dear acne doesn't get aggravated by wheat grains. Yes it can get aggravated by high glycemic index food and cow is milk product. So don't worry about wheat it's very essential cereal and I think you should not stop eating this to control the acne. It's better you should consult a dermatologist and let them take care of this