Thanks. I had thought so, and there is nothing to be so scared about, but please get the child checked up by a doctor. The child has a cold and that’s why has mouth breathing and has slight sniffles and cough. The only thing that is worrying is the high fever. Please do not let it go beyond 102 degrees otherwise the child may have febrile convulsions. If it does, please do some cold sponging and bring down the fever to 100 degrees. Some antibiotics and decongestants may be prescribed in addition, depending on the clinical findings, by the doctor.