My mother had fess sinus surgery 2months back for mucormycosis which is cured with amphotericin and posaconazole . she is having constant tenderness in the forehead area and she said air is entering inside eye. she had mild swelling above and below eye due to air. no pain inside eye, vison is normal, no nasal obstruction, only air trapped inside eye for 1month. when she wakeup in the morning after sleeping in AC , her swelling will increase and will decrease a bit by afternoon. . is it orbital emphysema? and is tenderness common after extensive surgery? will orbital emphysema go on its own? its already been a month of swelling with no other sinus issues.