My nose itches a lot and its a bit red, which is causing a lot of sneezing. moreover, my throat hurt which makes it hard to swallow.

Allergies most lokel: Unless this an acute problem associated with fever, coloured mucous, pain! Sneezing and itching of your nose are commonly seen wilt allergic reactions to environmental factors! Can try some simple things such as antihistamines and expectorants! If symptoms persist seek medical attention! Throat problem us usually caused in this circumstance by post nasal drainage of mucus

Post nasal drip: Looks like post nasal drip, try allegra and nasacort (triamcinolone) spray over the counter. If you sleep with your mouth open due to congestion your throat will hurt.