Yes, if after two weeks the flea preventive you applied isn't working, you can reapply flea treatment early, or switch to another brand. I recommend using Advantix or a chewable prescription product from your vet, like Bravecto, Nexgard, Simparica, or Credelio. This recommendation is unrelated to Petco or PetCoach.
Can you double up on flea treatment?
Never double up on products. There's no need to pair a powder with a spot-on treatment. 3. Wear gloves, or wash your hands with soap and water after you apply the drug.
How soon can you reapply flea treatment?
There is no single answer for this frequently asked question. The known safe answer is to wait the period of time the product is supposed to work, typically 30 days, before reapplying. An alternative is to bathe the pet in a detergent shampoo (meant to strip off skin oils) and reapply after 24 hours.
What flea treatments can be used together?
It's not usually recommended to use more than one oral flea medication at the same time. However, Comfortis and Capstar can be combined. Another exception is Sentinel, which doesn't kill adult fleas, so it can be combined individually with either Comfortis or Capstar.
What happens if I give my dog two flea treatments?
This can result in repetitive nerve discharges, or twitches and tremors, in affected dogs. So if a dog has a mild overdose of flea medication, symptoms, you may notice include twitching, excessive salivation, paw flicking, vomiting and diarrhea, and depression.

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