How to take care of big cold sore?

Laser treatment: The best way is laser treatment if the sore just developed. If the sore is beginning to scab just keep the area moist to prevent the scab from bleeding and cracking.

Cold sore tx.: Your doctor can prescribe valtrex (valacyclovir). Melissa officinalis or lemon balm (cream) has been shown in european studies to help expedite healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation w lysine 1, 000mg orally 3x a day at the onset, can also hasten healing. Your dermatologist can also provide laser treatments.