The Pet Owner's Guide to Flea, Tick & Parasite Prevention

As pet parents, we spend a lot of time thinking about food, exercise, and vet visits — but parasite prevention? It often gets pushed to the bottom of the list, especially when everything seems fine on the surface.

Here's the thing: parasites are small, but the damage they cause is anything but. And right now, with flea and tick season ramping up and temperatures rising across the Houston area, staying ahead of fleas, ticks, and internal parasites isn't optional — it's essential.

Here's what Dr. Gibson wants every pet owner to know.

The Most Common Parasites (and Why Each One Matters)

Fleas

Fleas are one of the most common external parasites we see — and they spread fast. One flea can quickly become a full-blown infestation in your home before you even realize what's happening. Beyond the constant scratching and discomfort, fleas can trigger allergic reactions, cause painful skin infections and anemia, and even transmit tapeworms and bloodborne illnesses to your pet.

Ticks

Ticks don't just live in the woods. They can latch onto your pet during a walk around the block or a trip to the backyard. They're known carriers of serious tick-borne diseases that affect both animals and people — and because they're small and often hide

in thick fur, they're easy to miss until it's too late.

What many pet owners don't realize is that ticks can transfer from your pet into your home and onto you or your family members. That makes tick prevention a household health issue, not just a pet care one.

Intestinal Parasites

Whipworms, roundworms, hookworms — internal parasites are harder to see but often more dangerous than the ones on the surface. They can live inside your pet for months without obvious symptoms, quietly affecting vital organs and overall health. By the time signs appear, the damage is often already done.

Heartworms

Heartworms are transmitted to pets by mosquitos. Here in Texas, we have mosquitos year-round, so maintaining your pets on heartworm prevention throughout the entire year is imperative. When left untreated, heartworm disease can cause lifelong damage to your pet’s heart and lungs.

Why Right Now Is a Critical Time for Prevention

Tick season is especially active right now, and we're seeing an increase in exposure across the Greater Houston area. 

The data backs up what we're seeing in the clinic. Lab data from UNT's Tick-borne Disease Research Lab indicate that people across Texas have been bringing in more ticks for testing this season than in years past — and across the United States, emergency room visits for tick bites surged to their highest levels since 2017 in 2025. Here in the Houston area, that risk is very real. Texas sees sporadic but serious cases of tick-borne diseases like Rocky Mountain spotted fever and ehrlichiosis — illnesses that can be swift and dangerous, even in suburban neighborhoods. KERA News + 2

The brown dog tick (uniquely adapted to hot, dry climates and life in close association with humans and dogs) is one of the primary culprits, and it's showing signs of expanding into new regions. That's not a distant concern. It's a Houston concern. Companion Animal Parasite Council

Warmer weather means more time outdoors — and more opportunities for ticks and fleas to find your pet. Waiting until you spot a tick or notice your pet scratching is waiting too long. Prevention works best when it's consistent, not reactive.

Signs Your Pet May Have Parasites

Not all symptoms are obvious. Here's what to watch for:

• Excessive scratching, licking, or biting at the skin

• Redness, scabs, or unexplained hair loss

• Visible fleas, flea dirt, or ticks

• Changes in appetite or sudden weight loss

• Vomiting or diarrhea

• Low energy or unusual behavior

• Coughing

  
  

If you're noticing any of these signs, don't wait. Give us a call or book an appointment online (existing clients only). Whether your pet is a dog, cat, rabbit, reptile, or anything in between — our team is equipped to evaluate, diagnose, and get them the care they need.

Prevention Is Always Better Than Treatment

This is something Dr. Gibson emphasizes often: parasites are almost always easier — and more affordable — to prevent than to treat.

Once an infestation or infection takes hold, you could be looking at multiple rounds of medication, deep cleaning your home, treating all pets in the household, and ongoing follow-up care. Consistent prevention helps you avoid all of that while keeping your pet comfortable and healthy year-round.

This isn't just good advice. The math tells the story clearly.

Heartworm prevention runs about $6–$18 per month, or roughly $70–$200 per year for most dogs. One round of heartworm treatment, on the other hand, costs between $1,200 and $1,800 — roughly ten times the annual cost of prevention. And that's if the case is caught early. In severe cases that require surgery, costs can climb to $3,000–$6,000, and even then, treatment kills the adult heartworms but doesn't repair the damage they've already caused to your pet's heart, lungs, and blood vessels. Vetster + 2

Flea infestations tell a similar story. Annual flea and tick prevention costs range from $120 to $360 depending on the product. Skipping prevention and dealing with a flea infestation after the fact can mean $50–$200 for home treatment alone, plus $150–$400 or more for a vet visit to treat flea allergy dermatitis — and that doesn't account for treating multiple pets, replacing furniture, or professional extermination, which can run $150–$600 for a full home treatment. Vetreceiptbluettipower

The bottom line: consistent prevention is not just better for your pet — it's significantly more affordable for you.

And here's something worth knowing: even pets that rarely go outside are still at risk. Fleas and ticks can enter your home on shoes, clothing, or other animals. Indoor doesn't mean immune.

Choosing the Right Parasite Prevention for Your Pet

Not all parasite prevention products work the same way — and not all of them are right for every pet. Your pet's age, size, species, and lifestyle all matter when it comes to finding the safest and most effective solution.

That's why working with a veterinary team that knows your pet is so important. We don't do one-size-fits-all here.

We're Here to Help at Gibson's

At Gibson's Paws, Claws & Crawls Veterinary Hospital, parasite prevention is part of how we look out for your pet's long-term health — not just their day-to-day comfort.

We offer trusted, vet-approved flea, tick, and parasite prevention medications through our in-house pharmacy. Our team can help you find the right product for your specific pet, walk you through how to use it correctly, and answer any questions along the way.

Ready to protect your pet before problems start? Contact Gibson's today or visit our online pharmacy to refill or start a prevention plan. Your pet can't ask for help — but you can.