Can flea medicine stop working?

Incorrect Application of Flea Treatment Incorrectly applying topical flea prevention is the most common cause for its failure to work. Flea prevention is expensive, and you don’t want to waste a dose. Topical medication should be applied directly to the skin, not the hair.

Can dogs become immune to flea medicine?

SAN FRANCISCO (CBS SF) — Experts say fleas may be mutating and becoming more resistant to topical anti-flea treatments, making them peskier than ever for Bay Area pet owners trying to get rid of them.

Can cats become immune to flea treatment?

Treatments used improperly allow fleas the chance to become immune to controls with each new generation. This can lead to endlessly larger outbreaks as fleas continue to multiply and become more resistant.

What do you do when flea medicine doesn’t work?

Why Has My Pet’s Flea Medicine Stopped Working?

1. Make sure to apply topical medications correctly (do not split medications to use on more than one pet)
2. Make sure your pet’s skin is healthy so topical flea medications work well.
3. Treat your yard and house where 95-99\% of the flea population lives.

What flea medicine is working this year?

Frontline Plus is our top nonprescription recommendation because it kills ticks and fleas, controls flea infestations, and kills chewing lice, all with one easy application. When used primarily for flea control, each dose of Frontline Plus lasts up to three months.

Why does my dog still have fleas after using Advantage?

There are no flea products that stop fleas from jumping onto pets. This means that regardless of the licensed flea treatment you use – you may still see fleas on your pet until the flea product kills it.

Why is my flea treatment not working on my Dog?

Reasons Your Flea Medication Isn’t Working Not treating the source of the infestation: The fleas on your pet came from eggs that have hatched in the environment. Find the source and treat it or reduce your pet’s exposure to the area. Common sources of infestation include your home, yard, and parks.

How do flea medications work?

Misunderstanding how flea medication works: Most flea medication do not repel fleas, so new fleas from the environment can and will jump on your pet to feed. Flea medications kill fleas either by direct contact or from the flea feeding on your pet. Research the product you are using so that you know how fast it will start killing fleas.

How long do Flea and tick medications last?

1. The Length of Time Flea and Tick Medications Last Flea and tick treatments that remain active for only a few hours or days are not practical for most dog and cat owners. Who has the time to be re-treating their pets so frequently?

What should I look for when buying flea medicine for my Pet?

The first thing to check (and double-check and triple-check) are the directions of whatever flea medicine you bought. For instance, if you are giving your pet an oral flea pill like Comfortis or Capstar Flea Killer, make sure you know how often you need to administer the dosage.