Sinus Pain Back Of Head Sinus Headache?? Pressure Front Under Eyes, Pain, Stiffness Back Of Head/neck, 2 Weeks On Antibiotics, No HELP

Sinus headache?? pressure front under eyes, pain, stiffness back of head/neck, 2 weeks on antibiotics, no HELP - sinus pain back of head

I've tried both the bottle and drink from the cup clarified through the nose, but seems more pain and give more headache? Is there a problem with the process could be done? Stoop and drink, after blowing your nose, are the same .. do but it feels like everything is there, and it hurts more steam is fine, but not for long, I can not just go away 3 weeks this way all day.
doc said, sinusitis, butbeen into 2 lots of antibiotics for 2 weeks, 1 more bundle like amoxil ... I hope this works
my head feels pressure and pain in the eyes and the neck and head rigid and moors bad pain,
Sinus is this normal?
Can anyone help or more answers to 3 weeks this pain?
To decapitate the current .................................
because nothing works