S.B.
I've never heard of this. But, I keep vick's vapo rub on my toenails. I dropped a TV on my foot and my toenails got yucky and infected. Vick's really helped. I don't know if it's the camphor or the eucalyptus, but my nails healed very nicely. I keep it on them from time to time just as a matter of course.
My friend has an icky toe nail and I keep telling her to try the vick's but she doesn't like the smell of it. I'd rather smell the vicks than have that God awful disfigured 2 inch thick weepy thing on her toe. And she lives in sandals.
I will be interested to hear your other responses.
Best wishes.