<s>[INST] My five year old woke me at 4am saying his mouth hurt, I found a hard bump on his palate, no discoloration, aboit the size, maybe smaller than a pencil eraser. Now, almost 6pm, he has cold symptoms, sniffles,.congestion, sneezing, coughing. What is this bump? [/INST] Hi...by what you quote I feel that this could be a submucus cyst. It is usually harmless. But I suggest you consult a pediatric dentist regarding this. But OT be more precise - I suggest you to upload photographs of the same on this website, so that I can guide you scientifically.  Hope my answer was helpful for you.  I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health. </s>