House took the cane with a slight incline of his head, the only clue that he'd heard and agreed with what Sherlock was saying. Hydrocodone would work just as well for now. The two drugs hydrocodone and paracetamol both worked to ease the pain through different pharmacological mechanisms, with the combined effect of easing the side-effects caused by each by having a lower dosage. But until he got hold of his preferred cocktail, he hardly saw himself to be able to complain. Much.
Then he was rolling up his sleeve and House took a moment to focus on the track marks going up and down the man's pale forearm. Some looked old, some were much newer. So he'd got hold of some since he'd arrived here, which suggested that he could probably get something for him. And with cold sweat starting to bead on the back of his neck, that was all he cared about right now.
"I need mine," he pointed out. "I'm in pain. Yours is just an absence of willpower." But he leaned heavily on his cane and moved to walk alongside Sherlock, albeit at a slightly slower pace. Carefully, he turned his head to look at him out the corner of his eye. "What do you do? I doubt drug supply is your first calling."