The roof of my mouth is red and very painful. The redness and pain is only located on one side of the roof of my mouth. The area also does not feel smooth like it normally feels with my tongue. It feels like there are tiny little bumps. I'm not sure what this could be since I haven't done anything I could think of to aggravate the area and I haven't kissed anyone or had any kind of human contact within the area. I'm having the hardest time eating things, even rice because the area is so sensitive. Do you know what this may be and how to resolve this?