Annoying cold sores---also known as fever blisters---have no cure and cannot be prevented from occurring. They are also highly contagious. Cold sores usually clear up in seven to 10 days without treatment, according to the Mayo Clinic, but they can be painful while present. Home remedies can provide relief from the discomfort of the sores, hasten the healing process and help prevent spreading the infection to others.
Ointments
Over-the-counter (OTC) ointments sometimes provide relief from the discomfort of cold sores because they soften the crusts of the sores and help keep them from drying and cracking open. Some ointments also numb the irritated sores. Recommended ointments include benzyl alcohol (Zilactin) and topical lidocaine.
Pain Relievers
Try OTC pain relievers such as aspirin, ibuprofen (Motrin, Advil, others) and acetaminophen (Tylenol, others) to relieve discomfort associated with fever blisters. Children should not take aspirin, because it can lead to a rare, but serious disorder known as Reye's syndrome.
Cold and Heat
Apply cold or warm compresses to cold sores. Many people find the heat to be soothing and the cold numbs the area. Apply heat to the affected area with a warm, moist cloth, or use an ice pack or cold compress to apply cold therapy. Some people find that alternating heat and cold provides more relief, while others use just heat or just cold. Apply as often as necessary to keep pain and irritation under control.
Good Hygiene
Don't pick, pinch or squeeze cold sores. This can slow healing and cause the blisters to spread. If the blisters ooze, keep them dry and clean. Use care when touching other parts of your body. The eyes and genital area may be more vulnerable to spreading of the sores. Avoid kissing and other skin-to-skin contact with others while sores are present, as the infection spreads easily. Avoid sharing personal items such as towels, eating utensils and lip balm.
Diet
The National Institute of Dental and Craniofacial Research recommends eating a soft, bland diet so that you don't irritate the blisters and surrounding sensitive areas. Choose foods such as creamed soup, yogurt, cooked cereal, pudding and macaroni and cheese. Eat foods lukewarm or cold instead of hot to further minimize irritation of the infected area.
