Medium Season 7 Episode 5 (Medium s07e05) with title “Talk to the Hand” aired on Friday, October 22nd 2010 at 08:00 pm via CBS Network.
Here is summary for Medium Season 7 Episode 5 :

When Allison gets a skin graft on her hand after a burn, she is puzzled when the same hand acts with a mind of its own, gesturing uncontrollably. Also, Bridgette keeps her real role on the soccer team a secret from her parents.