Lady goes to the vet with Muffy, who has a large hairy growth emanating from her posterior.
"Doctor, can you do anything about that big hairy growth there?"
Vet says, "No problem, here's a prescription for some ointment, just rub it on the hairy growth and it'll be gone in no time at all!"
Next day, the lady goes to the Pharmacy and presents the prescription to the Pharmacist. He looks at it and says.
"Wow! this is pretty powerful stuff. You'll have to be very careful when you apply this ointment".
"If it's for your underarms, make sure you don't use any deodorant for at least 2 days, otherwise you'll get a huge rash".
Lady says, "Ah but it's for" and before she could finish the pharmacists says:
"Well, if its for your legs, make sure you don't wear any tights for at least 3 days!".
Lady says. "No, No, you don't understand!"
"It's for my Schnauzer!"