How do you fix a sagging corner of mouth?
Permanent frown of upper lip One of aging change of upper lip is permanent frown of upper lip. Permanent frown of upper lip describes upside down of corner of mouth. The cause of this condition is due to hyper active function of depressor Anguli Oris (DAO). As we get older, this muscle become hyperactive and […]
How do you fix a sagging corner of mouth? Read More »