Hii.. Gaps between teeth generally involves 2 teeth involved in cavities. Due to which food lodgement occurs & gap gets bigger. There are 2 options to treat those gaps. 1. Permanent Filling 2. Root canal treatment What treatment will suit your case depends upon history & clinical examination. Get the treatment done until it gets more painful.

to get the solution for this you will first need to visit a dentist so that proper examination and investigation of the tooth can be done for giving the diagnosis and then only one can tell you clearly about the solution

Gap may be due to gingival recession ,gingivoplasty and root planning has to be done. To relieve pain, antibiotics and analgesics has to be taken. You can consult through this for prescription of medication.