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Comment by flocciput | Hacker News Reader

from https://www.fda.gov/cosmetics/cosmetic-ingredients/diethanol...:

The following are some of the most commonly used ingredients that may contain DEA:

    Cocamide DEA
    Cocamide MEA
    DEA-Cetyl Phosphate
    DEA Oleth-3 Phosphate
    Lauramide DEA
    Linoleamide MEA
    Myristamide DEA
    Oleamide DEA
    Stearamide MEA
    TEA-Lauryl Sulfate
    Triethanolamine

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I can't believe Lauryl Sulfate is in nearly every toothpaste. I don't know if I'm some rare case freak, but that stuff butchers my mouth.

It takes less than three days of accidentally using toothpaste with that stuff to cause me two weeks of miserable mouth hell from all the ulcers that form.

> I don't know if I'm some rare case freak, but that stuff butchers my mouth.

Yes, and also get a generalized allergenic test since you are obviously alergic to something and it might be a lot bigger group than you think.

The connection between canker sores and SLS is pretty well known and not rare or caused by some other allergy.

I'm not sure how rare it is, but as an anecdote when I was a teen I knew a kid who had a speech impediment and slurred their words really bad/was kind of mush mouthed.

We were on a group trip for about a week and had forgot their toothpaste and had borrowed someone's 'natural toothpaste' stuff. By the end of the week they were far more intelligible in speaking and were stating it felt like they mouth deflated. They had an undiagnosed allergy to toothpaste their entire life and no one had recognized it.

I don’t know where my parents picked up this trick, because everyone looks at me like I’m crazy when I mention it:

Relatively dry mouth. Milk of magnesia. Q-tips. Paint the sore spots with MoM. It thickens and forms a film, which cuts down on the tenderness.

I would try one spot if I were you. As bad as you described it, if that helps more than it hurts you might try gargling the stuff.

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