VENTING!! Sick older siblings 😖

My two oldest have been sick since the baby came. My 10 yr old is better now, just has cough and mucus. My 4 year old has a fever, ear infection, cough and mucus. They are rarely sick and this crazy weather with rain, heat and winds have trigged their allergies which triggered everything. Anyone else dealing with sick older siblings?

Also my 2 week old started with congestion recently 😣 really hoping the baby isn’t getting sick.

If anyone has tips on how to help calm this momma help. Cause I have not slept since baby arrived. 🥴❤️