you have ear infection
(to be precise middle ear infection) which has spread there from the throat infection
that you had..
You must complete your antibiotic course and also take some analgesics if u are having pain.(take tab crocin
500 mg three times a day for 3 days).
Also include an antihistaminic and decongestant combination.(take levocetrizine plus pseudoephedrine
combination one tablet at night for 5 days)
If inspite of above pain persisits or increases in severity then contact ENT clinic...to evaluate further in which case your ear will b needed to be examined.