how do you treat blister on your lips? let's assume blister developed from food allergy, not STD,

What ointment is suitable for treating blister?

Sometimes when I bite my lip I use Chloraseptic Sore Throat Spray. The affected area will sting at first then goes numb.

I don't know for sure, but Ambusol might help...

Carmex would be what I would use. Anbesol, chloroseptic and carmex, as well as probably a few others, all contain a topical anesthetic. With these three it is phenol or benzocaine. Anbesol and carmex do it in a petroluem jelly base. One or the other would offer some pain relief and possible protection.

Grandad turned me on to Campho-Phenique when I was really little and my lips would chap up bad. It'll numb your lip quick, and it is a fairly decent antiseptic. It also works well for backing out most kinds of slivers.

I second the Carmex and Campho-Phenique.

As a side...having suffered from the allergy thing myself, I now know what to stay away from. The ambulance ride and emergency room visit were not fun. Didn't get blisters, I just couldn't breathe too very good. Darn hazelnuts!!!

If the cause of the sore is allergic reaction, it might be sensible to treat it with antihistamines and steroids: benadryl capsules by mouth, hydrocortisone 1% ointment topically. Topical Benadryl (lotions and salves) seem to be more of a marketing gimmick than an actual treatment. Both benadryl and steroids are commonly used in the ER for allergic reactions. Some interesting thoughts on canker sores here (http://www.animated-teeth.com/canker_sores/t3_canker_sore_remedies.htm

Sores in the mouth are a symptom of scurvy; supplemental vitamin c might help prevent such. Avast, ye scurvy rogues-

I third the Carmex recommenations. Plus, you need some anyway to prevent the next lippian malady. ((( )))

"...Campho-Phenique..."

Man, I haven't seen/smelled that stuff in years. What a unique odor it has...

Camphoriated spirits are in a lot of ointments (including Carmex) because it works quite well for such afflictions. Camph-Phenique is the best delivery tool because it penetrates the tissue so quickly and thoroughly, but as a salve, Carmex is pretty darn good. Blistex also seems to work well, for much the same reason. The addition of a thick emollient to provide a protective layer makes salves sometimes more effective than oils or ointments.

Mellaleuca oil (tea tree extract) also has similar qualities, though I prefer the smell of Campho-Phenique more, and it seems to have a stronger anesthetizing quality.

Such ointments should be used according to mfr guidelines, as too much of a good thing can be just as bad as none at all.