Hi welcome to health care magic forum. Who ever get a vomiting
or a vomiting sensation will will have a slight sweating and cool body, inspite of the temperature of the body. Some children or adults will have vomiting sensation or vomiting when they have high fever
or headache due to any reason.
After some time he will attain normal body temperature or more than that if he have fever. He should get medicines for relief of head ache or fever and for relief of vomiting sensation along with antibiotic for relief of the underlying cause, so i advise you to consult a doctor for diagnosis and treatment.
Besides i advise you to give him high calorie foods more of water, juices , and fruits, for recovery at present. avoid giving proteins
and heavy foods for few days .
Wishing for a quick recovery and thanks for calling.