In the uncommon event that the canker sore persists, I eat another kiwi the same way the next day. It has never taken more than two kiwis for me to banish a canker sore, and I must say, I find it much more pleasant than another remedy you write about: sauerkraut juice.
We were fascinated to see a randomized clinical trial comparing kiwi fruit extract with normal saline solution for the healing of bedsores (Indian Journal of Surgery, December 2015, Supplement 2). The study was small, with only 40 patients, but the differences between the two groups were significant. Although the skin and the surface of the tongue or cheek are different, both are epithelial tissues. Apparently the protein-dissolving enzyme in kiwi fruit, actinidin, can help speed healing. Kiwi extract also has been found to be helpful in healing burns (Surgery, November 2010).
However, some years ago I heard that routinely eating hot peppers could dull the taste buds over time, and I consequently reduced my heat level somewhat. Is there any research on this?
We don’t know how well this research applies to humans. Your idea of moderation seems sensible, however.
Some people complain of “brain fog” the morning after taking diphenhydramine. That would be especially likely if you double or triple the dose.
The American Academy of Sleep Medicine recently issued guidelines about DPH (Journal of Clinical Sleep Medicine, Vol. 13, No. 2, 2017): “We suggest that clinicians not use diphenhydramine as a treatment for sleep onset and sleep maintenance insomnia (versus no treatment) in adults.”
You will learn about other problems associated with DPH plus nondrug strategies for combating insomnia in our Guide to Getting a Good Night’s Sleep. It can be found at www.PeoplesPharmacy.com.
In their column, Joe and Teresa Graedon answer letters from readers. Write to them in care of King Features, 628 Virginia Drive, Orlando, FL 32803, or email them via www.PeoplesPharmacy.com. Their newest book is “Top Screwups Doctors Make and How to Avoid Them.”