sinuses

hello!
i'm writing because i think i've developed a sinus infection and i'm not sure what to take. it began about four days ago. i woke up with a scratchy throat, but it went away after breakfast, and then i went for a run in the cold. later that afternoon, my throat became sore again and my nose began to run just a little. the next morning, my nose was running more and i had stuffiness. i had post-nasal drip and discharge from my sinuses was yellow, but discharge from my nose is clear. my nose runs like water in the evening, but is thicker and less problematic during the day. my eyes hurt a little bit. i cough a little bit towards the evening as well, but nothing comes out and there is no rattling, etc. i have been very pale the past few days and very tired. the only time i can get a large amount of discharge from my sinuses is in the morning and it's yellow; the rest of the day it just drips. i sniffle a lot. at night my nose gets stuffy and sleep with my mouth open. my mouth then gets very very dry and i wake up because of it. i've been trying to drink lots of fluids, but other than that, i have not done anything to get rid of it. also, my ears feel full and they crackle when i swallow. i think my tonsils might be starting to swell a little bit, as well.
thanks!