hello.I have a problem with my face.my face looks always fat and swollen but I am not fat.for several months ago I took an antibiotic for my sinusitis.three days later my face became thin and I thought swelling was because of the sinusitis.I was happy for finding the reason.but, one day later,swelling on my face became worse than before.I went an ear nose throat specialist and he said that there was an edema on my nasal mucosa.he prescribed me antihistaminic and intranasal spray.I finished taking the pills but I keep on using nasal spray.swelling was better than before but has not recover yet.I have been making researches on internet but I could not find anything.I just wonder the reason of my facial swelling.please help me?