My daughter had to be treated for recurrent lice infestation. The doctor told us to coat the hair with vaseline and now I can't get the vaseline out of her hair. I have washed it with Dawn and Selsun Blue as this was suggested. NOT WORKING VERY WELL. I need to know if someone out there knows anything else I can do. I have a Christmas party to take my children to tomorrow and I am at my ropes end.