5. Here Comes the doc
The dog is licking its wounds – this is common knowledge. He tries to relieve his pain, disinfect the area with enzymes in the saliva, and also to remove dirt. If you’ve injured yourself and your dog is particularly fond of you, the dog will follow instinct and lick you to help you.
Your dog can lick you for a variety of reasons – and even the negative reasons have a positive background. Your little darling likes you very much and for you, he would – if he had one – also give his last shirt.