Welsh basset dog
The redness of pet dogs' paws may be caused by skin diseases. Because of the influence of skin diseases, dogs will feel itchy, some parasites will oxidize and turn red, and another ear mite will cause dogs' ears to turn red. It's best to take it to the hospital and apply erythromycin ointment to its paws first.
It is worth noting that the cause of dog paw swelling may also be injury. So check the claws for wounds first. If there is, you can clean and disinfect the dog first, and then write drugs on the dog. If there is no wound and it is suspected to be a skin disease, I will take it to see a doctor.
If it is really impossible to determine the cause of the swelling of the dog's sole, the owner should not rush to give the dog medicine. The best way is to send it to the pet hospital first, and then formulate methods for targeted treatment after finding the cause. Be sure to avoid the situation that the dog is more red and swollen due to medication errors.