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.
After Congress passes a bill, it doesn't become law without the president's signature, and if he vetoes it, it may not be enacted at all (although Congress has the option of overriding the veto).