(She can tell he doesn't quite believe her, but she's confident in her hypothesis that him showing his work to her will help take his mind off it. And it does seem to work? For a bit, at least. He's showing her a pair of gauntlets, launching into a explanation...

but just as he's getting into it, he stops. Lucretia looks at him immediately, trying to read something more out of his troubled expression. He's really stressed about this, huh? Her own anxieties spike when he covers his eyes with one hand and for a moment she stands there helplessly, chewing the inside of her lip and trying to think. There must be something she can do.

She puts a hand on his shoulder, gives it a comforting squeeze.)

Let me try something...

(First, she casts detect magic, which returns nothing other than the residue of Cisco's own power, clinging to various areas of the workshop. He has a very clear signature; it makes this easy. There's nothing out of the ordinary, so she leaves that thread hanging and sets a ward around the workshop next, and then a second for safety.)

Would you let me cast something on you? It's– I know a spell that will dispel anything magical that may be influencing your thoughts.

(it's literally called mind blank but she's uh not going to tell him that)