Dd2 is 2.4 and when she gets a cold it drops straight to her chest. Doctor gave me a blue asthma spray for her. He said that she does not actually have asthma but when she lays down her chest will spasm and it causes the cough. She has got another cold and we gave her the spray as prescribed but last night she coughed for 3 hours solid. I have raised her pillows tonight and steamed her room but she is still coughing. Does anyone have any idea what else I can do