I have had a sore throat for about 10 days. My doctor after the first few days says he felt I had a virus.A week later, I still have it. I thought it may have been a sinus infection at first, but the congestion didn't last long. He told me to use a nasal spray (steroid). I saw him yesterday morning and he gave me a prescription for an antibiotic, but I haven't filled it yet. (He said he still felt it was a virus) Today I have alot of post nasal drip down my throat. Weird thing is, the mucous is orange, similar to bile. (Not pink or yellow/green) I have never seen this before. Could it be the nasal spray changing the color? I have no idea.