Treatment principle: 910nm infrared light and 407nm blue light penetrate the nail plate and mechanically affect the fungal cell wall, increasing the nail plate temperature to 43°C to 51°C, resulting in thermal damage to fungi and producing a therapeutic effect. A toenail typically grows out in 12 to 18 months. For best results, use the device for 7 minutes at a time, twice daily, for 3 months to observe noticeable improvement. This device is a non-invasive solution for nail fungal infections, designed to support nail health and help improve symptoms such as nail deformation and discomfort during walking. Keep nails trimmed short. When trimming toenails, cut them straight across and maintain a length shorter than the tips of the toes. Sterilize nail clippers before each use by washing with soap and water, then wiping with alcohol. This method may be suitable for individuals who cannot take oral medication, including elderly users, children, or those with liver or kidney concerns, as well as individuals sensitive to pain. Product notes: 1. The laser emits infrared light at 910nm, which is invisible to the naked eye; this is normal and does not indicate a malfunction. 2. Toenail regrowth takes 12–18 months. Consistent use is essential for visible results; short-term use may not produce obvious effects.