Sore Throat. The last 1. 5 - 2 months)

I have a history of sore throats even beforr, frequently, when I talk too loudly or I shout, Or i take anything too cold etc. A week or 2 weeks has been passed I have completed 5 days Antibiotic course (thrice a day) (Also one day by mistake i took 4 tablets, so the next day i took 2 and also there was a gap of one day by mistake during the course) I am also taking anti allergy tablets still. But suddenly today morning there is slight pain while swallowing again and by the fingertips I can feel a little swollen on the right side of my neck. ( I ain't going anywhere since the last 4 months, & my family is very alert in this situation, nobody in my family has stepped out since the last 1.5 - 2 months)