[header] How to deal with excessive licking in older dogs [title] Take your dog to the vet. [step] If your dog begins excessive licking in old age, or at any time, you should take your dog to the vet. Excessive licking is a possible symptom for a number of different treatable medical conditions. 
Take your dog to the vet and explain when the licking first began, and what area of the body, or objects the dog is licking. Possible causes for licking include : [substeps] Allergies.