I was prescribed Levaquin 750mg for 10day for a mild upper repiratory infection. I started tingling and my body turned blood red. It was burning terribly as if it was the worst sunburn of my life. It takes me half the night to fall as sleep. Now my head is in a fog and feel more and more tired. I quit taking this damn stuff after 5 days of this. My cold got worse anyway, the drug did not help at all. What a waste of $147.00 for ten pills. I guess the drug company made their buck.