Took 7 days of levaquin to get rid of a persistent, almost bronch...

Took 7 days of levaquin to get rid of a persistent, almost bronchitis-like cough & chest condition. Ended on a Monday, and the following SUNDAY (6 days later??!) I broke out in a crazy rash, predominantly on my shins, but literally from head to toe. Most prevalent wherever there's "pressure" of any kind on my skin... waste band, sock lines, watch, and it leaves big nasty red welts when I scratch. Shins surrenty look like I'm a burn victim from scratching, and I'm not really scratching that hard... even light, usually harmless itching/scratching leaves scrape marks. What the heck... I've never had a reaction to a drug before. This is awful -- the worst itch I think I've ever experienced.