Please help! I put a lot of the Hedrin spray on my dd's (age 3) long, curly hair 3 days ago and it won't wash out. I followed the instructions and added the shampoo to dry hair. I then washed it over and over again that night. Have washed it multiple times since with kids shampoo and also head and shoulders and it just won't budge. Her hair looks and feels so greasy! Any tips much appreciated. TIA