Oh. Crap. Joan should have thought of that. She looks up at Sherlock, who is pointedly looking away from the two of them. She's particularly glad now that they aren't going to be staying in 221B, although they're going to be careful about where Ted keeps the Vicodin when Sherlock comes over.

In addition to the issue with Sherlock's sobriety, Vicodin has acetaminophen as one of its components.

"This should be keeping your temperature down," she says, looking up at Ted, the concern plain on her face.