Zombie Eyes: What Causes Dark Circles Under Eyes And 6 Foods To Erase Them. Whether you have a full night of shut-eye or havenât slept in 24 hours, you find yourself plagued with dark circles. Concealers, eye creams, and eye exercises seldom tone down the shadowy effect of the dark or blue-black tints under your eyes. Now, before you succumb to the tall tales of an infomercial product, itâs important to know first what causes them.
Why Acyclovir Helps Cold Sores. Zovirax (Acyclovir 5 percent cream) is also FDA-approved for the treatment of recurrent cold sores. In studies, frequent application of the cream reduced the time to healing by about 12 hours.
How Long Do Cold Sores Last With Treatment? If your cold sore has lasted longer than two weeks, or the sore is too painful or unsightly to endure, go to the doctor. Your doctor can prescribe treatment to heal your cold sore in five to seven days, like Denavir and Xovirax. Abreva, an over-the-counter cold sore remedy available from the pharmacist's counter at most drugstores, is a topical cold sore medication that is FDA-approved to shorten the healing time of your cold sores.