The symptoms of nail fungus can vary, but some common signs include:Thickening of the nail: As the infection progresses, the nail can become thick and difficult to cut.Discoloration: The nail may become yellow, white, brown, or black in color.Brittleness: The nail may become brittle and break easily.Deformation: The nail may become distorted in shape and may lift away from the nail bed.Separation of the nail from the nail bed: The infected nail may begin to separate from the nail bed, causing pain and discomfort.Foul odor: In severe cases, the infected nail may emit a foul odor.Pain: Some people may experience pain or tenderness in the affected area.It is important to note that not everyone with nail fungus will experience all of these symptoms, and some people may have very mild symptoms. If you suspect you have nail fungus, it is important to see a doctor for an accurate diagnosis and appropriate treatment.It penetrates the infected nail plate and locks in pathogenic pathogens on the nail bed with a wavelength of 415 nm blue energy, while combining 905nm infrared pulsed laser radiation (which studies show has antifungal properties)that creates a synergistic effect that can kill onychomycosis without affecting or damaging surrounding tissues.Packing list: 1-3Pcs * Anti fungus laser pen.