I was doing PE and I went to sit down and I slipped and the Fake grass on the Astro-Turf Pitch went into the palm of my hand and it started bleeding, It was my last class so we were going home when we finished.
When I got home my dad took out the grass and put antiseptic cream onto it.
Last night I went to bed and my dad told me not to put a plaster onto it so i could let the air at it.
I left the plaster off but when I woke up this morning I looked at it and It looked like a blister.

Would it be a blister or could it be infected ?

Thanks