<s>[INST] I took my son to the doc for a bad cough and gave him hydromet. He fell asleep for a short period and woke up and threw up. I m assuming it s from the hydromet. Can I give him a different cough syrup since he threw up the other one or is it still in his body? [/INST] Hello and Welcome to ‘Ask A Doctor’ service.I have reviewed your query and here is my advice.It need not necessarily be due to the syrup you gave. Cough itself can cause vomiting and nausea. Cough can be due to wheezing too. I suggest you not to change the medication by yourself, but if your country has got any license over the counter cough syrups which are licensed for this age. You can go ahead.Hope I have answered your query. Let me know if I can assist you further.Regards,Dr. Sumanth Amperayani </s>