How long for fever blister to heal?

For common fever blisters, they typically heal in about 7-10 days on their own, or faster with some good antiviral cream. I sometimes apply a bit of aloe vera gel for soothing. But if it's really painful, spreading, or not healing, better show it to a doctor, no?

While most fever blisters clear up in a week or two, it's always best to be cautious. If it's a first-time occurrence, or if it's very large, painful, or doesn't seem to be healing, get it checked by a doctor. Safety first, always.

I get these occasionally, especially when I'm stressed. Usually, if I start applying an antiviral cream as soon as I feel the tingle, it stops it from getting too big and heals in about 5-7 days. If I miss that window, it takes closer to 10-14 days for it to crust over and fully heal.

About 1-2 weeks usually. Be patient!

Fever blisters, or cold sores, typically run their course and heal within 7 to 14 days without specific treatment. However, antiviral creams or oral medications can shorten this duration and reduce symptoms. If it's recurrent or severe, consulting a doctor is advisable.