TonyTonyChopper

I think it's just drool

Nope not that.. I notice some fine lines around his eyes in the end.
I guess he was crying because he learned what the prince go through?

Nah that’s a blush from kissing the prince hehehehhehe

(At least that’s what I think. Because instead of crying that looks more like the kind of lines that appear when the character is blushing a little or they are kinda sad, but he definitely didn’t cry)

I think it's a bit out of place for him to start crying after feeding him meds and basically making out with him