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J. Alfie, Content Writer, Masters in Literature, Dallas,Texas
Answered Apr 21, 2020
Fever blister and cold sore are both referring to the same thing, and that is why there won't be a need for any further comparison. However, you can only compare the two with other infections that look like a fever blister. Cold sore or fever blister are two names given to a disease caused by a virus known as herpes virus, which causes small bumps to be formed on the lips.
This infection is very contagious and can be contracted through kissing because herpes viruses are mostly present in the saliva of an infected person. According to research, it is believed that there are different stages of formation of cold sore or fever blister.
The first stage is usually characterized by soreness in which an infected person will start experiencing a tingling sensation around the area where the cold sore will form. The second stage is when cold sore appears. The small bumps formed in the second stage will break and ulcerate. The next is usually the healing stage.