Well 24 hours after giving up toothpaste I'm feeling a great deal better, in spite even of going out to lunch today.
It could be the impact also of taking three anti-histamines yesterday - right up to the doctor's limit. But I have taken none today.
I have checked several toothpaste tubes but none contain allergy warnings. In fact the best one, Sensodyne, seems to skirt around the subject. "As with all toothpastes," it suggests "if it irritates your gums stop using it." Sensodyne is of course formulated to protect "sensitive" gums.
I wouldn't like anybody to believe allergy is the main cause of gum disease - but it never seems to be mentioned as a possible cause.
We need a campaign to get allergy warnings on toothpaste. Amazing that one of the substances that enters the mouth most frequently contains none.
About cellulose gum: it is generally regarded as a gluten free substance and may even used in some free from products. Sources include cotton and wood fibre - would you believe! That does not seem to suggest there is much control over the content of it. If anybody has any inside information, let me know.
More updates on toothpaste later.