Fungal infection of the fingernails and toenails is a common condition that can cause the nails to become thick, brittle, discoloured, rough, or damaged. Nail fungal infections usually take a long time to clear completely because nails grow slowly, especially toenails. Mild cases may improve with antifungal nail paints or creams, but infections involving multiple nails or deeper nail damage often require antifungal tablets prescribed by a dermatologist for several weeks or months. It is important not to stop treatment early, even if the nails start looking better, because incomplete treatment can cause the infection to return. Keep your nails short, clean, and dry, and avoid sharing nail cutters, towels, socks, or footwear with others. Wear breathable shoes and cotton socks, and change socks daily to reduce moisture buildup. Avoid frequent nail polish, artificial nails, or prolonged exposure to water and detergents without gloves, as these can worsen the condition. Do not use steroid-containing creams without medical advice because they do not cure fungal nail infections and may delay proper treatment. Since fungal nail infections can sometimes resemble psoriasis or other nail disorders, a dermatologist may recommend tests to confirm the diagnosis before starting long-term medicines. Treatment requires patience because healthy new nails take time to grow, but with regular care and proper medication, most fungal nail infections can improve significantly or clear completely over time.