What to do!!!????? Help!

So i have an 8 week old, an i recently was in the hospital for gallbladder surgery(just got out today from hospital ) Well ig 2 things happened under my mom & 14yr old lil sisters care of my daughter.

1) They brought her into the hospital to see me (which i advised against) the whole hall has rsv and the flu.

And

2) My little sister stepped on the fire extinguisher in the car and it sprayed under my daughters carseat. She, i guess, had her snow cover on...

Should i be worried and panick still? Or am i in the wrong for being a b***h about it.

This is amongst the list of reasons whyyyy i dont let people watch my kids.. !!!!