<s>[INST] Hi. I'm not a smoker, but I've had lung infection and heart infection 10 years ago. I went through pericarditis surgery. I've been doing well. My job requires me to do home visits with clients. Some of the clients I work with smoke. There has been a number of times where I feel chest pain after I made a home visit to a client who smokes and his/her home has very strong smell of smoke. The last time this happen, I had chest pain for two days. Can you help explain why this is happening and what would be the long term effects.  Thank you. ---- Viv [/INST] You may have sensitive airways. This could be full blown asthma or simply just bronchial irritation. If it triggers symptoms that are this severe and prolonged, it would be best to avoid this exposure all together. You can try taking an albuterol inhaler immediately prior to or during this kind of exposure, it may help reduce the symptoms, but avoidance is more important. </s>