Blepharitis can also be secondary to sebaceous dermatitis. SD is alot of time as chronic condition. It can improve, almost go away then come back worse. Head and shoulders now makes a shampoo just for SD. You might want to give this a try. When you workout make sure you rinse off all the salty sweat. Another great product if this is SD is CereVe moisturizer and face wash. They aren't expensive are work better than any if the pricey stuff I have tried.