In order to deal with the pain and weakness in his right thigh, House carries a cane with him pretty much wherever he goes. He can hobble short distances without a cane, but rarely does he go very long without one by his side. Only a few times has he gone without a cane for long: at the start of the third season, while he was under the effects of the ketamine treatment; and for a time in the fifth season, when he switched from Vicodin to methadone to ease his leg pain. In Needle in a Haystack, h
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