You can use a medicated shampoo that is mandatory by vets in case the pet is susceptible to fleas and ticks. If you really like the person, though, and want to know them better, you may consider doing so first before "hitting it" to see what grows up. https://neurodivergencias.com/index.php?title=Ace_Dental_Professional_Exam_-_8_Back-To-School_Tips_For_Healthy_Smiles