Teething?ear pulling drooling and fuzzy

gi

He’s 3 months old and he’s been pulling on his left ear a lot and he just wants to be held all day he was sleeping so well and now he doesn’t and he also has been drooling more I thought it was his eczema or cradle cap that was bothering his ear (since he’s ears dry out so much from it) but he only pulls on the left one..anybody going through this or tips