Suggest Treatment For Blisters On The Cheek

i had to phone for ambulance for my daughter last night as she was breathless sounded like wheeze and a rash that was blistery appeared on her cheeks that turned purple red she sounded like she was trying to clear her throat also a in a panic i thought she was having asthma attack her eyes watery but the time the doctor seen her about hour half she was back to normal and could find nothing wrong everything was normal something happened and its worried me