Hello,
Your wife is suffering from
vomiting after having lunch from outside. She is vomiting due to
food allergy / intolerance. Since you have given her antiemetic, she should stop vomiting. Give her little time to relax. Her blood pressure might be low and after vomiting her blood sugar level might have gone low because of which she is feeling
cold.
After she has rested and is relaxed, you can give her
ORS. Give her water, fluid and soup so that her blood electrolyte level normalizes and she will start feeling better. You can give her some crackers or toast with red tea. But do not force her to take it. You can give her antacids to stop the formation of gas.
You should check her blood pressure, if it is low even after ORS and fluid intake and if she is too sleepy, you are suggested to get her clinically examined in ER, may be she will need some intravenous infusion of saline and other medical treatment.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician