my niece is Amudu n she is 4 years old now. she is going to school now n nowadays she is getting cold n cough on n off. During night after she is in deep sleep bcz of dry cough she vomits. she is getting diaper rashes since from one month so we make her wear the diaper only to school but still when she do the potty it immediately increases the rashes. n she has body heat she offenly gets mouth ulcers also when we give any medicines. Please doctr do u have any suggestions for this.