I had a dog that got Lymes when she a puppy. (I adopted her, and unknowingly, the tick.) She came through it just fine, and lived to 15. She never had any reoccurance, but she was an inside dog, and I didn't have a tick problem in my yard or neighborhood.

I don't know the exact antibiotic they gave her, but I'm sure any vet would know the right one.

During a routine screening several years ago, my min-pin was found to test positive for Lymes. The vet said it wasn't active and there was no need to treat it. He had never displayed any symptoms and has never had a recurrence. Now sixteen years old, he doesn't even seem to have as many aches and pains as most dogs his age and still jumps high in the air when he's excited. The Lymes doesn't seem to have affected him at all.

I don't treat dogs that test positive with Lyme disease unless they have symptoms because they will always test positive. What's the use of antibioitics if you can't cure the disease and there are no clinical signs? You're not fixing anything. I will make sure there is no proteinuria; otherwise I wait until and if there are clinical signs to treat.