Cough and chest congestion relieve for four year old? Upper respiratory infection and allergies was her diagnosis but her congestion seems worse today

Pediatrics. Any time you feel a 4 year old is getting worse the best course of action is to call the doctor, tell them what is going on and follow their directions. Hopefully she was seen by a pediatrician or an experienced family practitioner. If not, do that now. Better safe than sorry. Hope she is better soon.