Throat itchiness. Medication for it.

I have skin allergies i.e urticaria since i was a child but recently since the last month i am facing some sort of throat itchiness in the upper mandible region which i am predicting as some sort of allergy only. But it's affecting my nasal cavaties too. I have this sneezing problem which i am new to, my nose is getting very sensitive since i discovered my throat itching and burning symptoms. The sneezing is high when i am exposed to dust and when i get this throat itching. It even contains mucus. I can't figure out how to treat it properly. Anti allergic is really helpful to ease the problem but it doesn't cures it. The day i don't take the anti-allergic medicines, the itching starts again. Right now since the last three days i am taking few antibiotics but it doesn't seems to ease much. Please prescribe medication for it.