I tried butter again and had constant colds and running nose for about 6 weeks, one cold would run into another especially with teething. I stopped the butter and he has not had a cold since and he has gotten 4 extra teeth without getting a cold or run down. That was about 2-3 months ago now.
For sure, hard to tell when they are teething with the red spots... I still get confused... but now, he gets teeth without red spots on his cheeks since his diet has been clean of any irritants (irritants particular to him).