Hello, I am in XXXXXX and I think that I have a symptom of allergies. Sneezing , laryngitis , chest and nasal congestion and greenish mucus. I get it yearly since moving here 4 years ago. I am taking Allegra D, robitussin ( sparingly), mucinex, Flonase spray.......is that too much. I put on the vaporizer last night . When do I know i fit could be an upper respiratory infection.