[Elsa blushes at the praise, but she also looks... a little sheepish?]

It's a little less amazing when you know just what they are. They're, ah... [... Look just admit it, who knows what might happen in the future here! They need to be prepared if something happens like this again!] I got... sick, once. Nothing better, just a cold. But these little guys here popped up every time I... well. Sneezed.

[She's gone from looking sheepish to flat out embarrassed now.]