Hello sir, Hope I can lessen your discomfort As per your information, it can be either lichen planus or burning mouth syndrome. Hence pic is must to see and confirm the diagnosis So you are requested to upload the pic for confirmation of diagnosis.

Can you please share the photo of the concerned area?

Kindly upload d pic of the ulcer  if it is present  or the area of irritation . Kindly mention d duration of it , how long it has been started.  Considering her age it may be burning mouth syndrome or it can be  an ulceration . So with detail history and a pick of the lesion u can contact me on my page or make a  videoconsult . I m an Oral Medicine and radiologist  and deals with such cases . Meanwhile,  sip lot of liquids and juices and avoid spicy hot food . Apply mucopain ointment 15 mins before food .

Hello Can you please tell does she has or had habit of areca nut chewing and is there any stiffness present Keep a soft diet and visit a dentist immediately

It should be a condition called burning mouth syndrome .. try using a mouthwash called ‘ Saleva ‘ it shal reduce the ph and do wonders