Annoying Cold Sores

Cold sores can be very painful and annoying especially when you get it in the mouth area. I've tried a few treatment products that can make the sores dry but could sting tongue when you happen to lick your lips, though admittedly they helped in getting rid of the herpes simplex virus. But I would prefer the treatment that is effective in killing bacteria without hurting the skin. Right now I have an ointment for canker sores that has a numbing effect so I can still eat or brush my teeth without any pain.