Double ear infection, upper respiratory infection, sinus infection since November of 2016. Two weeks ago I was prescribed Augmentin for 10 days and had no improvement so I was prescribed Levaquin. Took it for 2 days and stopped due to severe itching all over my body, extremely dark urine, burning sensation with urination and decreased urine output. 55 yr old male. How long can I expect these side effects to last?