RG= recovery girl

Kiri: bakugou calm down it's probably just some aftermath from when my rib was broken and mr. Aizawa can you do something for me? 

Aizawa:what is it kid? 

Kiri: can you try and find Deku I can't find him anywhere

Aizawa:I'll try

RG: aizawa I think you should leave give the boy some space

Aizawa: okay but if you need me I'll be with the other teachers trying to open up Todoroki

Kiri: * cough* recovery girl can you please explain to bakugou that the reason why I'm coughing up blood is because of aftermath from when my rib was broken

RG: sure like I said my quirk takes away the damage not the pain so when the rib was damaged even though I fixed it the body still sent pain messages to the brain so the brain is probably sending blood there to fix it by creating a scab but since it's already fixed the only way for the blood to escape out without killing the body is through the mouth like kirishima said it's just aftermath

Kiri:see I'll be fine