My babies cheek is a little swollen?

Shelly • Mama to 👦🏼 Jesse 6/4/19 & 👶🏻 Jameson 3/11/22

I’ve posted before about my son teething and he’s getting his canines in first. This battle has lasted close to 4 weeks now and still no tooth. His cheek is looking a little swollen though and the gum inside does too? Any advice or words of wisdom? I feel so bad for him that it’s lasting this long. Picture from 2 weeks ago vs. now