Here are some possible reasons why your dog might be developing small blisters in their hair:
* Allergies: This is a common cause of skin problems in dogs. Allergies can be triggered by food, pollen, dust mites, or other environmental allergens.
* Parasites: Fleas, mites, and other parasites can cause skin irritation and blisters.
* Bacterial or fungal infections: These infections can occur if the skin is broken or if the dog's immune system is weakened.
* Autoimmune diseases: Some autoimmune diseases can cause skin problems, including blisters.
* Medications: Certain medications can cause skin reactions, including blisters.
Please schedule an appointment with your veterinarian as soon as possible. They can examine your dog, run tests, and recommend the best treatment options.
It's important to avoid trying home remedies or self-treating your dog's condition. This could worsen the problem or delay proper diagnosis and treatment.