The girls have croup, my son has a rash, temperature above 38, cough, …

The girls have croup, my son has a rash, temperature above 38, cough, white bumps in his throat, we're lying in the hospital, there will be a consultation today and they'll give us a treatment plan. I heard that after croup there are dangerous consequences... I'm in despair, I'm very afraid of losing my son, I'm so scared??