Puppy swollen gum ?

[Kissesandcakes23]

My 15 week old puppy appears to have a swollen gum one side of mouth. It's slightly red and
he won't let me touch it and if I do he whimpers. He is acting and eating normally. I wondered if this is normal teething (has lost his front two bottom teeth this week) or if I need to be concerned?

It van be a normal part of teething. Have you been giving cold or frozen items to chew? Teether that goes in the fridge or freezer?
I’ve also been using an old tea towel twisted sprayed with water and frozen in a bag in the freezer for DD puppy.
You can freeze a carrot ( some say cook a little to soften first) and give with supervised access.
You can buy puppy teething gel for sore gums too.

Sounds like an infection. A vet appointment is needed.

I was going to add vet if doesn’t settle.