<s>[INST] I had my gallbladder removed Monday. I removed the anti nausea patch from behind my ear last night, per ER nurse, because of trouble urinating and swallowing. This mining I woke up nauseous and have vomited all day. I ve not been able to keep anything down, liquid or solid. No fever, but my face is bright red and sorta warm like a sunburn. I had been taking Percocet, but haven t taken any since 10 am this morning due to nausea. I called surgeon s office and they wrote a script for Phenergan gel to try to control vomiting, but I m still very sick to stomach. What gives? [/INST] Hi, The possible causes of post cholecystectomy nausea or vomiting may be due to side effects to the anesthetized Chat Doctor.  Until examination is done it is difficult to say what it is. Use mouth dissolving Ondansetron. Avoid spicy food and oily food. You may take Metoclopramide or Levosulpiride injections. If symptoms not improved please consult your treating doctor he will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further.  </s>