How to Treat Head Lice With Neem Oil. Head lice are parasites that stay close to the scalp for warmth, protection, food and moisture. The mature louse is the size of a sesame seed. It has six legs with claw-like feet that grip the hair, making them difficult to remove. Lice are most common in school age children, but can be contracted by adults.
Saturate the head with neem oil full strength. You also can mix a 4 parts neem oil to 1 part tea tree oil solution with 2 tsp. of olive oil. The tea tree oil kills lice and the olive oil suffocates them. Massage the oil through the hair and into the scalp.
Spread a large plastic garbage bag out on the floor and have the person being treated lay down on the floor with the oil in his hair. The plastic protector catches any running oil.
Leave the oil on for an hour, and then shampoo vigorously.
Rinse the hair with hot water until all the shampoo is removed. The hair should remain a little oily but not overly greasy.
Part the hair into small sections and use a metal nit comb to comb the eggs, also known as nits, out of the hair. You also can use tweezers to pick the nits out and squash them.
Wait two days before washing the hair again. Since your hair will be slightly oily, cover your pillows with towels so they don't get stained. After the head lice have been eliminated, mix a small amount of neem oil into your shampoo every time you wash your hair.