Slight Vent session

I'm annoyed and angry. The in laws wanted to take my son since he was out of school for Christmas. I took him Wednesday and he came back home today. Except he came home bearing a gift. Of head lice! I'm 37 weeks and a few days and now we potentially have to deal with head lice. ?? We noticed pretty quickly and only found 1. I put everything I could in the washer immediately and the rest went out to the garage. He went in the bath with tea tree oil and tea tree oil in his shampoo. And I've sprayed down stuff with a peppermint and tea tree oil mixture. Plus we put the tea tree oil in our hair.