Toenail fungus is an infection where the fungus is living in the cracks and pores of your nail. The laser therapy treatment will target the infected areas, causing the old infected nail to be replaced by a new healthy nail. During treatment, the patient will often experience a warm sensation. Other than that the laser toenail fungus treatment is relatively painless because the fungus has already killed the toenail. One thing to keep in mind is that this is a treatment and not a cure. If you don’t change the way you do things at home such as throw away old shoes, disinfect nail clippers, throw out old nail polish, etc… then the fungus will return. After the treatment, if the nail isn’t exposed to other infected nails, or fungus ridden areas as previously discussed, then the laser therapy treatment can be up to 97% effective.