Campho-Phenique Cold Sore Gel Original is a topical gel that provides temporary relief from pain and itching. It also helps with the prevention of infection associated with external cold sores and fever blisters. It is formulated with camphor and phenol, which work together to numb the pain and itchiness of a cold sore, while also helping to prevent infection. The gel is also non-greasy and easy to apply. A favorite for cold sore and fever blister treatment for lips for over 130 yearsFormulated with camphor and phenol to temporarily inactivate the pain signals at the nerve endings in the skin to provide a local anesthetic (numbing effect) that stops the pain and itch of cold sores and fever blisters on contactAntiseptic properties help prevent infection to promote cold sore healingAloe soothes and mositurizes, preventing dryness and cracking as cold sores and fever blisters dry out