ForumsArchive of old foru...LifestyleDiet & holistic hea...Sore/stiffness Caus... Notifications Clear all Unless you have severe, widespread, and scarring acne, The Regimen is normally my suggestion for the most effective acne treatment.My suggested acne treatment Learn The Regimen → Learn The Regimen → Sore/stiffness Cause Of Acne?whoartthou 1 MemberMember2(@whoartthou1) Posted : 03/05/2013 2:43 am Could this be the reason why I have body acne (specifically shoulder acne)? Maybe the stifness I get on my shoulders could be constricting blood flow? Quotealternativista MemberMember410(@alternativista) Posted : 03/07/2013 11:34 am more like a common cause - inflammation. Quote