Possible causes:
* Allergies: Cocker spaniels are prone to allergies. The carpet might be harboring dust mites, pollen, or other allergens that trigger sneezing and itchy skin.
* Irritants: Something in the carpet could be irritating your dog's nose or skin, such as cleaning chemicals, fibers, or even something spilled on the carpet.
* Parasites: Fleas or mites can cause sneezing and itchy skin, leading to rolling on the carpet.
* Infection: A respiratory infection can cause sneezing, and if it's itchy, your dog might roll on the carpet for relief.
* Playing: Dogs sometimes roll on the carpet for fun, especially after being outside or playing with other dogs.
What to do:
1. Observe your dog: Pay attention to when the sneezing and rolling happen. Does it occur after being on the carpet for a certain amount of time? Does it seem worse after you've cleaned the carpet?
2. Consult your vet: If the sneezing and rolling are frequent or seem to be bothering your dog, it's best to consult your vet. They can diagnose the cause and recommend treatment.
3. Consider environmental changes: If allergies are suspected, you could try changing your cleaning products, using a hypoallergenic carpet cleaner, or investing in an air purifier.
It's important to note that I am not a veterinarian. If you are concerned about your dog's health, please contact your veterinarian for professional advice.