Severe itchy and sore throat 4m 2 mnths.

Severe itchy throat from 2 months.Along with sore throat some times.also have different sensation in ears itching in ears and click sounds when move or swallow.It all started with ear discomfort.Used all antibiotics,betadine gargle,salt gargle,allergy tablets,nasal drops and also steroid medrol 16mg 3 days.When I took medrol 16mg the itchiness in throat was less but it started again and ear discomfort not discomfort it's like when water gets in ear how sound comes the feeling is like that.is it due to cancer throat cancer?iam really worried plz help.my age is 27 female.Alos I was taking very very hot steam for a month directly while heating on stove without offing daily thrice for a month.Does this cause throat cancer?