• Dog Questions

      Have a question about parasites and your dog? Review frequently asked questions below or submit your own for our resident vet.

    • Is there a period of time before and after application of topical drops that I should NOT bathe my dog?
      If you choose to bathe your pet before applying Hartz® UltraGuard™ Flea and Tick Drops, wait a...
      How important is it to keep within the weight guidelines when using Hartz flea and tick products for dogs?
      It is very important to keep within the weight guidelines when...
      How does my dog get fleas?
      Fleas can be picked up outside in...
      I have a puppy that already has fleas. How old does a puppy have to be before I can use one of your flea and tick products?
      Puppies must be 12 weeks of age or older and...
      Can I use your flea & tick products on a pregnant dog?
      No, it is not recommended to use...
      What if my dog drinks some of the bath water during the bath?
      If your dog does get a few drinks of the water...
      How do you know if a dog is going have an allergic reaction to a topical flea and tick product?
      Unfortunately, this is not an easy question to answer. Your dog can have...
      I have an elderly dog, is he too old for a topical flea and tick treatments and, if so, what do you recommend I should do now to control his fleas?
      Your dog is not too old. In fact, it is important to provide...
      Should I be concerned about mosquitoes biting my dog?
      Yes, mosquitoes are not only a nuisance but they can also...
      How do I know if my dog has ear mites?
      Ear mites are barely visible to the naked eye; however,...
      How many different types of intestinal worms can attack my dog?
      As a dog owner, it’s important to know about...
      How does my dog become infected with intestinal worms?
      How your pet becomes infected depends on...
    • Have a question we haven't answered?

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      CAUTION:This is not an emergency service. If you have an emergency,contact your veterinarian immediately.

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      Have a question about using a Hartz® product?

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      Consumer Hotline

      Monday-Friday 9am-5pm EST

      In the event of an emergency, please contact your veterinarian.