Fall itch, paws and ears, and what the itch meds really do

Fall is a busy stretch for itchy dogs in my exam room. I see about ten a day most of the year, and this time of year a lot of them come in licking their feet or shaking their heads. Around Houston, fall belongs to weed pollen and mold spores, often until the first real cold front, so the itch doesn't get much of a break.

Most owners have already lost a few nights of sleep and read a pile of conflicting advice by the time I see them. That's pretty common, and it's why I'm starting this note. Once a month, I'll send what I'd tell you across the exam table that month, with the money said out loud.

Why the paws and ears go first

Allergic dogs don't itch evenly. The paws, ears, face, armpits, belly and groin have more mast cells (the allergy cells), thinner skin, warm folds and the most contact with the world. In allergic dogs, the paws and face are where pollen slips in through the skin. The ear canal is skin too, which is why so many allergic dogs keep getting ear infections.

To understand the meds, it helps to picture itch as a telephone system. The nerve endings in your dog's skin are the phones, and the nerve is the hotline to the brain. In allergic dogs, most of the calls come from one messenger, IL-31. When researchers measured it in the blood, they found it in 57% of dogs with atopic dermatitis and couldn't detect it in normal dogs.

What the itch meds actually do

The main itch meds stop that message in different places.

Apoquel (oclacitinib) is a pill that works inside the cell. IL-31 and the other itch messengers pass their message along using enzymes called JAKs, and Apoquel blocks them. Zoetis says it starts working in as little as 4 hours. It's given twice a day for up to two weeks, then once a day. Figure roughly $80 to $110 a month for a 55 lb dog, about $120 to $140 the first month, or about $960 to $1,320 a year. It isn't for dogs under 12 months.

Cytopoint (lokivetmab) is a shot at the clinic that grabs IL-31 before it can reach the nerve. Zoetis says it starts within a day, and one shot lasts 4 to 8 weeks. It's about $120 to $200 a shot for a 55 lb dog, so about $800 to $1,300 a year at one shot every 8 weeks. The 2023 AAHA guidelines list no age limit, and it's my go-to for puppies, older dogs and dogs with other health problems.

Numelvi (atinvicitinib) is the newest JAK pill, approved in early 2026. It's once a day with food and labeled down to 6 months. Its field study ran only 28 days, and I don't have a price I'd trust to quote yet, so ask your vet's office.

These are rough 2026 US prices, and your clinic will vary. Every one needs a prescription.

Your itch forecast

These Cypress (77095) numbers are the snapshot as of Oct 14, 2026. The live forecast is on the homepage.

Cypress (77095), Wednesday, October 14, 2026

Today's Itch Risk: 4.8 out of 10, Moderate, driven mostly by grass pollen (moderate). Weed pollen moderate, tree pollen low, mold moderate. 93°F, 69% humidity, wind 13 mph, no rain.

Next five days: Today 4.8 Moderate, Thursday 4.8 Moderate, Friday 5.8 High, Saturday 7.4 High, Sunday 4.8 Moderate.

Check the live forecast on the homepage

For my clients around the clinic, the end of this week looks like the rough stretch, with Saturday the highest. If your dog flares every fall, Thursday is a good day to get ahead of it with the tip below.

Myth of the month: hair and saliva allergy kits

I get why people buy these. They cost less than a visit, and you want an answer. But no blood, hair or saliva test can diagnose allergy in dogs. In studies by Coyner and Schick (2019) and Bernstein and colleagues (2019), mail-in kits were sent fake samples, and one reported "allergies" in fake fur and salt water.

These kits run about $50 to $300, and the report often recommends the company's own supplement or food. I'd spend that money on fleas first, then an infection check, then a proper food trial. Allergy testing is only for building allergy shots, and for that I trust intradermal skin testing by a board-certified veterinary dermatologist.

One thing to try this week

Keep a damp washcloth by the door and wipe your dog's paws and belly after every walk. It's cheap and takes about 30 seconds. On a high Itch Risk day like Friday or Saturday, it's the first thing I'd do. If he's still clearly itchy after a week or two, that's the time to get him seen.

New this month

I added two comparison pages for Numelvi, since a lot of you are hearing the name:

• Numelvi vs Apoquel, the two JAK pills side by side
• Numelvi vs Cytopoint, a pill at home or a shot at the clinic

And if you want something short to keep handy, The Itchy Dog Quick Guide: What to Watch, What to Do, and When to Call Your Vet, in Pictures is out on Kindle.

Talk soon, Steve

Dr. Steve Pelton, DVM, Hearthstone Animal Clinic, Cypress TX. General education, not veterinary advice. If your dog is miserable, see your vet.