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A day after getting deeply acquainted with Donald Trump’s hairdo, Jimmy Fallon was a bit more hesitant to get up close and personal with Hillary Clinton.

During Clinton’s latest visit to The Tonight Show, which taped Friday and will air Monday, Fallon jokingly donned a surgical mask to welcome the Democratic presidential nominee, who recently recovered from a bout of pneumonia.

“Thank you so much,” Fallon said while reaching into his desk drawer and pulling out the mask. “It is great to have you here.”

Clinton laughed and high-fived the late-night host, who then made a show of applying hand sanitizer.

Elsewhere in the segment, Fallon asked Clinton about the challenges of appearing both personable and authoritative on the campaign trail.

“It’s so tricky because you have to go and you have to say hi to everybody and be happy, and you do,” Fallon said. “But also people kind of want to see this Hillary, which is the badass Hillary. … They want to see someone who’s going to protect us and be strong and tough.”

“It’s especially tricky for women,” Clinton said. “It just is.” She added, “You don’t talk about ISIS with a big grin on your face. … It’s a constant balancing act.”

Watch Fallon and Clinton below.