I Have A Terrible Putrid Smell Coming From Nose. Brownish

I have a terrible putrid smell coming from nose. Brownish green liquid. Not thick mucus. It started last week with severe sinus pain, no longer pain, but going down throat and smell is god awful, nose is open I can breathe through it. I feel like throwing up. no fever, no headache. Coughing clearish phlem. no somker