Possible Diagnosis: Understanding Your Cold & Sinus Symptoms

Question
Hi doc, i was in today to see my doctors PA and got the meds i think i need but was wandering what excatly might i have as she was vague.  Last week i had a flight on monday and about thursday i had a scatcy throat as opposed to a true soar throat, some sneezing but not much, sinus drainage becoming yellow, not prone to sinus infections but i made the mistake of not taking my decongestant on the way home, thus i thought i had some sinus issue that progressed to an infection, no fever, but now a week later i have this cough which is bringing up yellow material from my lungs so whatever i had spread. on levaquin mucinex d and zyrtec d.  You hear so much about people catching stuff on planes,  

Answer
probably is a viral upper respiratory- sinus and bronchitis.... antibiotics usually don't help, it gets better on its own, but most people think they feel better taking some antibiotics... if it doesn't start getting better in about 5 days, then I add in antibiotics... chances of something bad from an airplane are very very rare these days with the new filters they use