Peter posted the below informative site:
http://www.stratford-upon-avon.freeserve.co.uk/PENotes/VarroaTreatment.htm

A couple direct quotes from the site and my comments:

"Oxalic acid in its crystalline form is poisonous and should be handled
carefully. It should not be allowed  to contact the skin and IT IS ESSENTIAL
THAT THE DUST IS NOT INHALED"

As usual on the internet no mention of use of breathing protection is talked
about. Only advice to stay up wind from the dust. A cheap dust mask might be
better advice if not a respirator.

"Thymol is a relatively safe substance to handle WITH GLOVES but is very
PUNGENT and therefore best kept out of the HOUSE".

 We all know wax/honey  picks  up smells  and at least one BEE-L person has
said his honey was unfit for sale after use of the method at the site due to
the strong pungent smell of thymol. Hmmm. Ok for the bees house but not for
the beekeepers. Hmmm.

I have never used either thymol or Oxalic acid so maybe I should  keep my
comments to myself but do wonder about the information posted at the site.

Drizzle the bees for varroa and clean your frames at the same time I
suppose?

Bob

Ps. Maybe time to invent a new beesuit for beekeepers to protect from bee
stings and chemical hazards?
1. eye protection
2. breathing hazards
3.splashing  hazards
4.hand protection

A NASA space suit might work. At least we could climate control the space
suit which would eliminate sweat headbands and overheating hazards!

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