Soak nails in hydrogen peroxide for 2 minutes twice daily. Or try to dip a cotton swab in bleach and dabbing under nail. Also try dipping nails in water mixed with baking soda or apply mashed Garlic, onion, ginger and termeric (head/ Haldi) paste under the nails. Take vitamin C 250 mg twice daily. Take vitamin B complex 25 mg daily. Eat fresh washed raw leafy green and colorful vegetables and fruits. Drink crystal clean and fresh water 8 to 12 glasses everyday. Add Garlic, onion, ginger and turmeric in your food.