Fleas & Ticks Relieves Itching due to Fleas & Ticks. Effective NEEM Shampoo is deep cleaning and effective in relieving irritations due to flea and tick bites. Helps remove doggie odor. This high lathering shampoo cleans the dirtiest pets while creating a healthy, shiny coat.  Also used as a de-greasing shampoo. *only for use on dogs Available Sizes: 20oz Directions Wet coat and apply a generous amount of shampoo until pet is covered from head to tail in rich lather., massaging it well into the coat. Leave on 5 to 7 minutes, then rinse thoroughly, then dry. Repeat as necessary.