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I have been getting a blister towards the back of my mouth, behind my molars ever since going Paleo 7 months ago. I really only have one that is reoccurring and I can pop it and then it seems to go away for a while.
Today was the first time that I noticed that it seemed to appear right after eating a few spoon fulls of coconut oil and a banana.
Any idea if coconut oil could cause this? I have always eaten bananas but have only been eating coconut oil since going paleo.

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Never heard of such a thing, but go ahead and do a little N=1 and ditch the oil for a while. – JayJay Jul 9 at 1:00
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Many people are indeed allergic to coconut. My BFF (bless her lovely heart) can't have coconut in any form without hives. If your body is telling you no to coconut, do listen. :) – January Jul 9 at 2:03
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I have to be super careful with coconut oil - a teeny bit I'm ok, a teaspoon or more I'm doomed. As @JayJay said, ditch it. I would do 2-3 weeks, and then try again. If you want to really test it - eliminate both banana and coconut oil. Add one in. Fine? Ditch it for a few days, clear it out of your bod, and try the second item. Fine? Try both together. Would be interesting to see if the two together are actually the issue. Ahh.. I love N=1 :) – jesuisjuba - paleorepublic.com Jul 9 at 2:51
Yes, an n=1 experiment is in order. I just love it so much that I don't want to give it up. ;-) I'll give it a try and report back in a couple of weeks. I think I continue cooking with it occasionally but quit eating it by the spoonful. – spayne Jul 9 at 15:24
UPDATE - Okay, so a few days into it I have eaten plenty of bananas but no coconut oil and it has not returned. I am going to wait a week longer and then try eating a few spoonfuls without any banana to see what happens. If there is nothing then I will try mixing them again. – spayne Jul 11 at 13:09
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http://www.wisegeek.com/what-are-the-signs-of-an-allergic-reaction-to-coconut.htm

According to that link: itching, swelling, hives, and blisters can be symptoms of an allergy to coconuts (or other tree nuts). I'm sure these things can happen inside your mouth if you are allergic.

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Thanks for the link. It makes sense that it may be an allergic reaction. I don't think I am allergic to anything else but this makes sense. I am going to do an n=1 experiment and see if it clears up. Thanks – spayne Jul 9 at 15:26
put a little on your lips and see if they tingle. seriously – Bill1102inf Jul 13 at 2:20
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Canker sore type blister? If I eat nuts and don't brush my teeth afterwards, sometimes I'll get one next to this one tooth on the side where food tends to stick.

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This is a new one for us. We've never heard of it. Thanks for brining it to our attention. Of course, it may not be the coconut oil too.

Try Fermented Coconut Oil. Tropical Traditions Gold Label is very different to most. If you are in New Zealand, try Ancient Wisdom brand.

Neil Smith

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