Head lice is that dirtly little sercret that nobody wants to talk about. So how do you tell a friend that they have had lice? It's a difficult subject since nobody wants to deliver bad news, especially to a friend. At the risk of loosing a friendship or your friend getting mad at you for telling them that they have lice, honesty is always the best policy in friendships. As a professional service, we see people upset that they have head lice, but we see friendships and trust broken when they discover that their friends knew about it and did not tell them. If you know a friend has head lice, do them a favor and tell them that have head lice. Be a friend and tell a friend.