Since you had visited ENT specialist
regarding heat wave in ear,I would suggest you to visit a dentist
and get a thorough clinical evaluation done.Impacted wisdom tooth
which is inflammed,can cause such conditions.
Such teeth has to be either extracted or flap overlying tooth has to be removed.
Gargle frequently with warm saline and betadine
Avoid anxiety and stress.
Take rest until the problem solves.
Hope this helps.