Zakk Wylde is having a really bad summer. First he gets fired from Ozzy's band with the Ozzman announcing his axing publicly, apparently even before being man enough to tell Zakk in person (A Sharon move perhaps? At least it is consistent with how the Osbourne's treat band members). And then this week he had to visit an emergency room following a concert because of a blood clot.

Blabbermouth reports: Zakk Wylde (Black Label Society, Ozzy Osbourne) was apparently taken to a local hospital emergency room following Black Label Society's August 19, 2009 concert in Missoula, Montana in order to receive treatment for a blood clot.

According to a posting on Zakk's official Twitter account, he was headed back to the hospital today to receive further medical attention for the same condition. No further details are currently available