nasal congestion

hi im female and 26 yrs old now. i have this feeling right now such as headache, pressure of the eyes, and nasal congestion. sometimes it affects of the tooth. it feels that my head had water inside. and i cant sleep if i will not elevate my pillows. I think i have this acute sinusitis. Before 2 yrs ago i was undergo by nasal endoscopy. and doctor found out something wrong with my nose so he recommends to used nasal spray. and now i have this feeling again, so its ok to use nasal spray again without consulting a doctor? i use nasal spray fluticasone propionate right now. please advice me. thanks..