For the treatment of head lice (1% lotion): 1  Shampoo the hair and scalp using regular shampoo. 2  Thoroughly rinse and towel dry the hair and scalp. 3  Allow hair to air dry for a few minutes. 4  Shake the permethrin lotion well before applying. 5  Thoroughly wet the hair and scalp with the permethrin lotion.
Congress can override a presidential veto by having a two-thirds majority vote in both the House of Representatives and Senate, thus enacting the bill into law despite the pâ¦resident's veto. Answered by The WikiAnswersÂ® Community.
This action, in effect, is a veto.   If the Congress overrides the veto by a two-thirds majority in each house, it becomes law without the President's signature. Otherwise, the bill fails to become law unless it is presented to the President again and he chooses to sign it.