 [ Symptoms ] i have sinus infection went to er now feel no energy tired and weak [ Disease ] give yourself some time your treatment is going well however you should have been given antibiotic useful for upper resp tract infection… recommend you to take also mucolytic and expectorant like mucocin also drinking hot drinks like tea with lemon mint ginger with lemonn will be great try also to be well nourished eat healthy food as to make up better immunity as you are taking strong antibiotic