Stress requires chocolate, but what does chocolate to to the complexion?

As I pop another chocolate bar open and take a bite out of it I am made to stop and hesitate - don't eating too much chocolate cause stuff like acne and things? Where is the balance point between stress reduction and being in need of buying a good acne pill to combat the issues caused by the chocolate that is keeping the stress in check? I think I need to locate something less calorie filled and possibly face blemishing than a chocolate bar every time the stress spikes.