Dear sir/ mam, my freind who is a girl is fed up with lice (zoos) in her hair. She is not getting rid off that thing. Please suggest me the best shampoo, oil or ointment through which she'll get some instant relieve and result cause its annoyed with such lice. She is living very tensed. She always used to asked something shampoo or medicine through which she'll get cured from zoos. She is 19 years old only. So, please suggest me the best shampoo or oil and how to apply that as soon as possible. Thanking you.