Determining whether that blemish you have is a lip pimple or cold sore is not hard. A cold sore is caused by type one of the herpes simplex virus. A pimple is caused by a blockage in the pores of the skin. A pimple will be red and sometimes have a white top, while cold sores look more like blisters. Pimples may itch or not cause any discomfort at all, while cold sores often burn or tingle. Both are unsightly. The picture above on the left is a pimple and the picture on the right is a cold sore on lip.
Cold sores often appear around the mouth region, but it is possible to get a cold sore on cheek, inside of the mouth, as well as on or inside of the nose. Cold sores are highly contagious. The easiest way to if the guest on your lip is a pimple or cold sore, is to pay attention for any tingling sensations on your lip. The first few days before a cold sore appears, most people experience a tingling or burning sensation where the cold sore will pop up. If you experience this feeling, you may be getting a cold sore. You can begin treating your cold sore as soon as you experience this tingling or burning sensation, although not all people may feel it.
There is no cure for the virus that causes cold sores. It is a life long condition. Cold sores often reappear in the same places. The virus that causes cold sores often travels back down the nerve, where it lies dormant until the perfect conditions for an outbreak arise. This is why cold sores often keep showing up in the same places. Avoiding high levels of stress, long exposure to sunlight, and cold winds can help prevent a cold sore from being triggered.
View more information on cold sore prevention.