The main reasons for dogs' redness and licking of paws are intertrinitis. Interphalanitis is a relatively common disease. The clinical symptoms include redness, pain, swelling and ulceration of the claws. Anti-infection treatment is required in a timely manner. Drugs containing cephalexin can be used.
At the same time, the owner also needs to take care of the toes and try to keep it dry and clean. If it has purulent and ulcerated, the pus needs to be cleaned and the infected area is disinfected. 3% hydrogen peroxide can be used.
If it is really serious, then the owner should not hesitate. He must take the dog to the hospital as soon as possible and let the pet doctor provide treatment.