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Bactrim is used to treat ear infections, urinary tract infections, bronchitis, traveler's diarrhea, and Pneumocystis carinii pneumonia. It's probably not the best thing to use to treat a fever blister. Antibiotics don't do any thing for viral infections, fever blisters are caused by a virus. It could also cause side affects like rashes, nausia, diahrea and vomiting.

If it's around your mouth then you should consult with a doctor and see if it can be applied there.

For safer treatment, you can use over the counter cold sore creams like abreva.

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Q: Will batrum help a fever blister?
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Will ciprofloxacin help fever blister?

Ciprofloxacin is not used to treat a fever blister.


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Do not lance a fever blister.


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A fever blister and cold sore is the same thing.


If you kiss a boy with a fever blister that is going away will you get a fever blister?

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A fever blister will last about 2 weeks.


Can you put anti fungal liquid on a fever blister?

Yes, but it won't help. Cold sores are caused by viruses, not fungus.


Can you use neosporin to get rid of a fever blister?

Neosporin can help to prevent infection and so helps wounds heal faster, however, it will not do anything specific for a fever blister. An over the counter medication called Abreva can help as can several prescription medications. Some think leucine (and amino acid) is also helpful.


Can you get a fever blister from using your old chapstick?

Yes


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it typically depends on the conditons i would be cause it helps relive pain right after that i usually put bag-balm on it going from the surrounding area in to pervent further infection. REMEMER not to let dirt and moisture near the area(s), because it thrives on those things.


What to use for a fever blister?

EAR WAX I AM NA TRUE BELIEVER!