My dog’s paws are red and swollen and he keeps licking his fur. Why?

Red and swollen dog paws and constant licking may be caused by trauma, skin diseases, mosquito bites, or interdigital inflammation. The dog needs to be treated immediately to avoid aggravation of the condition. First of all, you need to wear an Elizabethan collar on your dog to prevent bacterial infection caused by frequent licking. Then you can use sterilizing and anti-inflammatory drugs or drugs to treat skin diseases.
Tips:
You should pay attention to the hygiene of your dog's paws and clean them after you go home every day.