I had a dental check up done a month ago with a teeth that is sensitive to cool air.  No cavity and a X-ray done also turned out normal.  So, Id been advised to change to sensitive tooth paste.  Now, I have a tooth ache that is on and off repeatedly for couple days now.  I find cool water helps relief the pain, and hot water add to the pain.  I have been using sensitive tooth paste daily.  Why am I getting worse?  Is sensitive or nerve infection?  Shall I go back to my dentist?
Hi. Welcome to Chat Doctor . I have gone through your query and can understand your concern. As per your complaint and presentation of symptoms if there is pain on and off and if the pain subsides after taking cold water and exaggerate after taking hot foods or liquids it is a clear indication of nerve inflammation, and you need to consult your dentist and get evaluated, and he can take 2 x-rays [IOP AR] from different angulation s that correct diagnosis can be made. It most probably seems to be that the nerve is inflamed due to tooth decay and the treatment that can help in relieving the pain is ROOT CANAL TREATMENT followed by antibiotics and painkillers. If tooth cannot be saved extraction has to be done. As of now for pain relief you can take anti-inflammatory painkiller like Ibuprofen. Avoid chewing from the offending side and prevent taking extremes of hot and cold foods and fluids as it can cause pain. Hope this information helps. Thanks and regards. Chat Doctor.