ZetaClear Topical preparations come in either a cream or a liquid formulation. These are both ZetaClear applied directly to the outside of the affected toenail. These may arrest mild cases that haven't infected deep into the nail, but rarely do much to treat serious infections strongly suggests that medical monitoring for liver damage be done regularly while on the drug Lamasil. However, that doesn't happen near as often as it should, leaving patients vulnerable to serious medical problems.

http://www.vitaminofhealth.com/zetaclear-side-effects/