I had a bout of sore throat and something like a flu about 3 weeks back. I was given amoxycilin 250mg for 5 days, but till now, I have been experiencing a dark brownish mucous from my nose when I suck my mucous back and spit it out during the mornings. Throughout the day, when I blow my nose, there will be occasional green mucous too. But phlegm that I cough out is colourless. My throat is only very slightly sore occasionally. In addition, the white in my eyes have red spidery streaks ever since, and I have eye discharge when I wake up in the morning. I am very troubled. Is this serious? Thanks for your patience with my long message.