The dog's front leg is lame and keeps licking it. After the owner finds out, he should pay attention to the condition of the dog's paw to see if there are any sharp objects or traumatic wounds. If there are any, they should take them out in time and wipe and disinfect them with iodophor to avoid wounds. If the dog is infected and pus is discharged, it is best to take the dog to the pet hospital for examination and treatment to ensure the dog's health. During the treatment, do not let the dog exercise vigorously to avoid aggravating the wound and affecting recovery.