<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi doctor, I have been experiencing nausea, peripheral edema, and vomiting for the past two days. Yesterday, my lips also swelled up and I am worried it might be an allergic reaction.  <response>: It seems like you are having a drug reaction. The symptoms you have mentioned are common side effects of certain medications. Please inform me of any new medications you have taken recently. 