Erina EP controls ectoparasites (external parasites) like ticks, fleas and lice in pets. It prevents skin infections and improves the overall condition of the skin. Wet the pet's body thoroughly with water. Apply the required quantity of shampoo and rub thoroughly into the hair root to obtain a lather. Leave the lather on the body for ten to fifteen minutes and wash with water. Pat dry with towel and brush the coat when dry, or use as directed by the veternarian.