Overall, Dr. G Clear Nail Antimicrobial Antifungal is a good product to use for fighting nail fungal infections. Aside from being proven to treat nail fungus, it also provides a soothing effect and relieves the symptoms associated with fungal infections.Positives:he active ingredient included in Dr. G is 1% tolnaftate. This is commonly used to treat fungal infections such as jock itch, ringworm and athlete’s foot. Dr. G also claims that it can work in treating onychomycosis or nail fungal infections as well.