Itch Flea Treatment: First Month Free and 20% Off
Last updated: 27 October 2026
Itch is a UK subscription that posts flea, tick and lice treatment for cats and dogs through your letterbox each month. Our Itch discount code link gives you the first month of Itch Flea free, plus a code for 20% off a later order. After that, the treatment costs from £8.50 a month for a cat and from £9 for a small dog, with free delivery.
Get your first month of Itch free
The Itch link on this page is a referral link. If you sign up through it, I get a referral reward at no extra cost to you. Itch does not choose what I say about it.
What Itch is
Itch is a pet wellness company that sells its own flea and worming treatments on subscription. You fill in a short questionnaire about your pet. Itch then works out the dose from the animal and its weight. The right pipette arrives each month, so you do not have to remember to buy one.
The flea treatment is a spot-on liquid. It uses fipronil and (S)-methoprene, the same two active ingredients found in Frontline Plus. Fipronil kills adult fleas, ticks and lice, and methoprene stops flea eggs and larvae from developing. Itch says it kills adult fleas within 24 hours.
How the Itch discount code works
- Open our referral link and enter your email address.
- Itch sends you a unique code for 20% off a future order.
- Set up an Itch Flea subscription for your pet. The first month of treatment is free.
- Use the 20% code on a later order.
The referral offer covers subscription orders for one pet. It cannot be combined with another discount or used against Itch's introductory offers.
Key facts
- Monthly price for cats: £8.50 for any cat over 1kg
- Monthly price for dogs: £9 for 2 to 10kg, £9.50 for 10 to 20kg, £10 for 20 to 40kg and £10.50 over 40kg
- One-off purchase: from £9 without a subscription
- First month: free, with £3.49 postage on the first order for each pet
- Delivery: free after the first order, by Royal Mail in 1 to 3 working days, across Great Britain and Northern Ireland
- Active ingredients: fipronil and (S)-methoprene
- Contract: none, so you can pause, change or cancel at any time
- Extras: wormers, treats, ear care and cat calming products can join the same delivery
Who Itch suits
- Owners who forget the monthly dose: the treatment turns up when it is due.
- Households with more than one pet: each pet gets its own dose, and the free first month covers up to three pets.
- Dog owners: Itch offers dog subscribers a free personalised smart tag with a lost dog service.
- Anyone paying vet prices for routine flea treatment: £8.50 to £10.50 a month, delivered, is easy to compare against your vet's bill.
If you are also weighing up cover for vet bills, our guide to pet insurance in the UK compares the main policies.
The limits
The first month is not completely free. Itch charges £3.49 postage on the first order for each pet. After that, the subscription renews at the full monthly price.
Itch's own website already offers the free first month to every new customer. So the extra value of the referral link is the 20% code for a later order.
If you still see fleas after a couple of months of treatment, ask a vet about a prescription product instead.
A spot-on is not right for every animal. Itch's doses start at 1kg for cats and 2kg for dogs. Check with Itch's vet team before treating a very young, pregnant or unwell pet.
Where to get Itch in the UK
Itch sells direct from its own website. Its support team answers on WhatsApp, email and phone on weekdays from 8am to 4pm. The Veterinary Medicines Directorate authorises its flea and worm treatments, and you can look up the data sheet for each one in the VMD product information database.
Cat owners setting up a monthly routine might also like our page on KatKin fresh cat food, which also arrives on subscription.
FAQs
How much does Itch flea treatment cost?
£8.50 a month for a cat, and from £9 to £10.50 a month for a dog depending on weight. Delivery is free after the first order, which carries £3.49 postage.
Is the Itch first month really free?
The treatment is free for the first month, but there is a £3.49 postage charge on the first order for each pet.
What does the Itch discount code give me?
Through our link you get the first month of Itch Flea free and a code for 20% off a future order. It applies to subscription orders for one pet.
Can I cancel Itch at any time?
Yes. There is no minimum term, so you can pause, change or cancel the subscription whenever you like.
Is Itch flea treatment the same as Frontline?
It uses the same active ingredients as Frontline Plus, fipronil and (S)-methoprene. The doses are matched to your pet's weight.
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Link last checked on 27 October 2026. Prices and offers change, so check the current terms on Itch's website before you sign up. The referral link on this page earns me a reward at no extra cost to you.
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