Apple cider vinegar
Studies show that some people may feel relieved when they apply apple cider vinegar (ACV) to their blisters. Although there is no evidence for heroes and ACV, studies show that ACV may have antifungal [3] and anti-effective effects. It is important to note that apple cider vinegar should be used carefully on wounds because it has acidic features and can cause damage to tissue. It should not be used for bacterial infections of the skin.
You can use a cotton ball and apply diluted ACV to the affected area multiple times in a day. You can also hold it for a few minutes at once. Do not stop using it until your blister heals.