This press release from Jane’s Addiction was reported in the L.A. Times:

Jane’s Addiction’s management has confirmed that percussionist Stephen Perkins has been admitted to the Infectious Disease Ward at Cedar’s-Sinai Hospital in Los Angeles for treatment of an infection in his elbow. Doctors expect to keep him there for the next few days for further diagnosis and observation while anti-biotic treatment continues.

Fans are being asked not to worry as a full recovery is expected over the next few weeks.