Not sure what exactly is wrong with the komarisa (other than being born, for which the shitblob has already deserved a long and agonizing death, stripped of all happiness), but if I'd have to guess, looks like heat - it's feet seem to hurt, maybe dry or something.
To let little one suffer like thatWhy..
Why noone helps Reimuuu!?This world is unreasonable!Yuuu
Wick-wick feelsh good nojeHold on!
Mother will surely heal you!