Yes, like my daughter says, fleas don't stop at the door.

Start with clicking on Pharmacy. Select flea treatment you want. If Vet is required at the bottom you will see a blue RX symbol. Click on it.  A form should follow and ask for Vet's name, phone, etc. 

I've never been able to get my 6 yr old chihuahua to take any chewable or pill. I have to split the chewables in half and wrap each have in chicken flavored pill pockets. I have to wrap any meds in them too. It usually takes 3-4 attempts before he'll stop spitting the whole thing out and actually eat it. I have a piller so I can just inject the pill in the back of his throat without having to get a couple in his little mouth when he's under the weather and won't eat or just flat out refuses to eat it in the pill pocket. Its been a life safer. Definately, easier on my boy. Piller looks like a long, real thin syringe if you've never seen/heard of them. They cost about $5 depending on where you get it