Blisters Gums Infant I Have Tiny Clusters Of Blisters And I Also Have Tiny Blisters On The Inside Of My Mouth On My Lower Gums. ?

I have tiny clusters of blisters and i also have tiny blisters on the inside of my mouth on my lower gums. ? - blisters gums infant

I had a cold in recent weeks and I do not know if he wanted anything to do with it, had ideas?