Nose & Throat dryness and redness.

Hi. i have been having a dry nose that has reddened from inside, its always blocked when i wake up in the morning. i can't breathe during sleep ( I have to breathe from my mouth) . at first i thought its because of the cold weather (Bangalore) , but then i found out maybe its because of some allergy. i tried applying Otrivin nasal drops but it didnt help.  A lot of Mucus get formed every morning i wake up that blocks my nose from breathing. When I try to remove it, it bleeds from the nose. it looks like pale yellow and reddish (not the usual one). i have been sneezing a lot as well and my lips and mouth have also got dry every morning. i literally have to apply saliva to my lips with my tongue to make it moisturized