I've noticed a little, white bump on the right, upper side of my tonsil arch area- what could this be?

Infection? Could be a viral or bacterial infection, but need more information, like is there a sore throat? Sick contacts? Fever or nausea? Cough?
Prob tonsilith. Secretions from the tonsils can sometimes get trapped and cause white or yellow crusts that stick out from the tonsil. They also can cause bad breath. Have a doctor look at it to confirm that this is what it is.