Maxillary sinus problems

I was wondering if anyone could suggest some kind of relife from this god annoying pain!

Last week, I came down with a cold from hell (No girls, not man flu!  ).  I had a fever, headaches, and so on.

I then developed a nasty cought and my chest felt awful... as if I had been smoking a thousand cigarettes! (I dont smoke btw).

This all went on until about thursday when I started to feel better but I have developed what I am sure is a sinus proplem.

The mail pain is concentrated just above my left cheekbone.

The area is very tender (Like a bruise) and when I clench my teeth, a dull ache spreads throughout the upper jaw on the left.

And even feeld as if I have a mild tootheache on that Jaw.

If I sniff, if feels like a pencil has been shoved up my left nostril (I do apologise but I cant think of any other simmily).

I also get a pain in the left eye like that of a brain freeze.... like when one eats an ice lolly too fast.

And this is leading to a headache on the left side  of the head occasionally.

All this seems to have stemmed from the cold/flu I had last week and am sure it is a sinus related problem. The profile really does seem to fit that of "Maxillary sinus" problems.

Does anyone have any ideas?

Thanks in advance and I apologise for going on.

But it is being a sod to get over.