actually, nail fungus treatments can be quite liver toxic, and some of the oral treatments can have a nasty adverse effect of causeing congestive heart failure.
ANd topical preparations of any kind can be absorbed thru the skin into the body and could still affect a fetus. (Just recently I read of a ?teen? in ?NYC? who died from an overdose of useing some kind of ben gay type cream). (for example)
ANd sometimes a nail fungus is a complication of some other underlying problem in your body. Possibly an immune system disorder or malfunction, or a sign of Candida. or some other chronic condition.
http://www.mayoclinic.org/diseases-conditions/nail-fungus/basics/definition/con-20019319
