<s>[INST] Hello I have a lump in the centre on the roof of my mouth. It has been there for almost 10 years. It becomes swollen, irritated and itchy for periods of time (days to weeks) and then settles down again, only to come back a week or so later. It feels like it is related to my allergies (eye conjunctivitis ). I did see an ENT specialist about 6 years ago. He told me it was just some dermatitis . What I really need is for someone to tell me how I can get some relief. It is very uncomfortable. [/INST] Hi Evan, The problem you are describing can be associated with the allergy and with the sinus. If you are having some sort of sinusitis which is related with the nose sinuses infection or gallery, this can present as the problem which you are facing with. Allergic sinusitis is a chronic problem and is mostly because of some allergic substance and this can lead to a chronic condition. I would suggest you to consult some ENT surgeon regarding this problem and after proper history and examination and if required some investigation, it can be confirmed whether this is some sort of allergic problem or something different.  Thanks. </s>