<s>[INST] Hello, I m a 18 year old female. Today I ve noticed a pain on the roof of my mouth, towards the back. It isn t burnt, I ve felt that before, it truly feels bruised. Is that even possible? And when i rub my tongue against the roof of my mouth it has a slight bump to it. As if swollen. I put a mirror in to try and see the roof of my mouth and it does has a blueish purpleish tint, but I presume that, that ids caused from veins. I have not done, or eaten anything out of the ordinary to cause this. I ve been sucking on some ice to try and sooth it, but I feel as though it only makes it hurt more. Please help or give some advice please. Thanks! [/INST] Helo,Thanks for consulting HCM ,Read your query as you have painful bruises on roof of mouth this can be due to carious tooth , decayed tooth , impacted tooth , or sinus problem , dont worry I will suggest you to consult dentist and go for visual oral examination of roof of mouth if needed go for investigations occlusal radiograph for examination of roof and rule out the cause . In meantime do warm saline rinses 2 -3 times a day , for pain you can take analgesic like Diclomol sp or Ketrol dt .Hope this will help you. </s>