you poor thing
had a cold earlier in the yr my trusty local chemist said no echinacea, but you can take garlic horseradish and c combos or just even super strength c. fenugreek is def ok and will ease your sinuses well. you can also take panadol and nurofen to ease pain.
make sure if you get garlic horse c combo it has no marshmallow apparently thats a no no.
hope you get better soon!