My little maltepoo is a healer?

Our little dog is constantly trying to lick our ears. My daughter lets him lick her ears and told me that her left ear used to hurt and feel bad. She said her ear now feels better because she let him lick it all the time. I thought she was a dummy. Then I started having a problem with my own ear and let him lick it a few times and I swear! It feels so much better! Is there something in a dogs salavia that heals ears? I know this sounds crazy..but it is true!