Dogs itching from a new collar: all causes, solutions and the best choices for sensitive dogs
, by Michael van Wassem, 6 min reading time
Why do dogs get itchy from a new collar?
A new collar may seem like a simple accessory, but for many dogs, irritation develops during the first days or weeks. This shows up as scratching, redness, shaking their head, or even bald spots. Itchiness caused by a collar is more common than you think — and it can have multiple causes, from material sensitivity to an improper fit.
In this comprehensive guide, you’ll discover how this happens, which materials often cause problems, what you should do immediately, and which collars are safe and comfortable for sensitive dogs.
Should you buy a new collar if your dog develops itching?
You don’t always need a new collar right away, but it depends heavily on why your dog is itching. If the irritation is caused by an improper fit, sharp stitching, or stiff materials, it’s wise to switch to a collar that is comfortable. If the itching turns out to be an allergic reaction to certain substances — such as chromium in leather, nickel in metal buckles, nylon, or synthetic coatings — cleaning or adjusting the collar unfortunately won’t help. In that case, a different, hypoallergenic collar is the safest solution. If your dog likes a certain style but not the material, switching to Biothane, vegetable-tanned leather, or a soft neoprene lining is often the perfect outcome. Whatever you choose: your dog’s skin should always guide the decision. If your dog is sensitive, replacing the collar is usually the quickest and most animal-friendly way to stop the itching for good.
The most common causes of collar-related itching
Itching usually develops due to a combination of factors. These are the main culprits:
1. Allergic reaction to materials
Many dogs react to specific substances in new collars. The most common are:
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nylon
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polyester
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latex
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rubber
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cheap metals (nickel, chromium, aluminum alloys)
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synthetic dyes
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glue residues and coatings
These materials can cause contact allergies or mild skin irritation.
2. Chemicals used in leather processing
Even “real” leather collars can cause itching. This is due to:
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chromium salts (widely used in leather tanning)
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chemical dyes
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oils, waxes, or lacquers
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preservatives
Many dogs react specifically to chromium, one of the most common tanning agents. This causes redness, scratching, and sometimes flaking skin.
3. Friction due to fit or hard edges
A collar that is too tight or too loose constantly rubs the same spot.
Stiff leather, sharp stitching, or rough lining can also damage the skin.
Especially in dogs with:
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short coats
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thin coats
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sensitive skin
… irritation develops quickly.
4. Moisture + collar = irritation
A damp collar becomes a breeding ground for:
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bacteria
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fungi
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yeasts
Leather holds moisture for a long time, making irritation more likely.
5. Allergy to animal proteins in natural leather
Rare, but possible: some dogs react to natural fats or proteins still present in leather.
6. Hair breaking or getting caught
A collar that is too rough on the inside can break or pull out hairs, causing itchiness or irritated spots.
How do you recognize collar-related irritation?
Watch for these symptoms:
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frequent scratching around the neck
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red patches or warm skin
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bald or flaky spots
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pain response when touched
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restlessness when the collar is put on
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head shaking
The faster you act, the lower the risk of infection.
What should you do immediately if a collar causes itching?
1. Remove the collar right away
Give the skin time to rest. Let your dog wear a harness temporarily if possible.
2. Gently clean the skin
Use lukewarm water and, if needed, a mild hypoallergenic dog shampoo.
3. Check the collar
Inspect the inside for:
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hard edges
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rough stitching
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discoloration
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chemical smell
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wear or moisture
4. Let the skin dry and breathe
Many itching issues occur because the skin stays moist for too long.
5. Prevent scratching
If the skin breaks open, infection can occur.
6. Does the redness persist?
It may be an allergy → consult your vet.
When should you see a vet?
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if there are wounds, crusting, or pus
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if itching continues after 48 hours
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if the dog shows pain
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if there is swelling or moist patches
A vet can determine whether it’s a bacterial infection, fungus, or allergy.
Which collar materials cause itching most often?
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nylon and cheap synthetics
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rubber / latex
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faux leather
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laminated leather
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chemically tanned leathers
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metals containing nickel
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bright dyes or cheap coatings
Even “real leather” can cause itching due to chemical processing, not the leather itself.
Which materials are best for sensitive dogs?
Fortunately, there are many skin-friendly alternatives:
✔ Biothane
Hypoallergenic, antibacterial, odor-free, flexible, and water-resistant.
The number one choice for sensitive dogs.
✔ Premium vegetable-tanned leather
No chromium or synthetic chemicals.
✔ Neoprene lining
Soft, breathable, and protects against friction.
✔ Cotton, canvas, or rope
Natural and gentle on the skin, though less durable than Biothane.
How do you prevent collar irritation in the future?
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Always choose a material that suits your dog’s sensitive skin.
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Let a new collar “air out” for 24 hours before using it.
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Clean the collar regularly.
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Avoid wearing it for long periods in rain or while swimming.
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Check the skin daily, especially on young dogs.
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Use a harness occasionally to give the neck skin a break.
Conclusion: collar-related itching is annoying but easy to solve
Dogs can develop itching due to many materials — even real leather.
Fortunately, with the right choices you can quickly resolve and prevent irritation.
Pay attention to fit, material, and hygiene, and choose skin-friendly alternatives such as Biothane or vegetable-tanned leather.
Want to discover the best, most comfortable and skin-friendly collars? Check out all collars from Fidello.
Considering switching to a harness?
If your dog frequently experiences itching from a collar, a harness can be a great solution. A harness distributes pressure across the chest and back instead of the sensitive neck, preventing friction and irritation. Especially for dogs with sensitive skin, allergies, or short coats, a well-fitting harness can greatly reduce or even completely prevent symptoms. However, a harness must also be soft, well-fitting, and free of hard edges. With the right fit and material, a harness can definitely help prevent itching and skin problems in your dog. Check out all harnesses from Fidello.
