Generally speaking, de-worming pups is routinely done with the first and second set of vaccines. A fecal is taken with all of them. Vets want you to de-worm all puppies, even those that are clear on their fecals, but I always opt-out of it. A good way to avoid the "probe" is to bring in a VERY FRESH sample in a ziploc baggie, but if there's any chance she has Giardia or Coccidia, or if she's never been tested for them, a direct fecal is best.
Hope this helps.
P.S.- Most OTC de-wormers are terrible. Especially Hartz brand. I'd just get it from the vet.
Hope this helps.
P.S.- Most OTC de-wormers are terrible. Especially Hartz brand. I'd just get it from the vet.