Hi. Two years old patientago I had a cold which turned into a week long constant migraine, my left eye swelled shut and my face bruised, left side only, since then I have had this smell in my nose like a burning smell but in the last few months it is a very strong ammonia smell, mainly after exercise or after blowing my nose, I get alot of green snot daily. i have seen two doctors but I don't havd answers, I cannot live with a disgusting smell in my nose. Should I be worried?