<s>[INST] I QUIT SMOKING A BOUT A WEEK AGO AND IM STARTING TO GET A RASH ON MY BACK IN MY RIGHT SIDE BY ID SAY ON THE LUNG AREA... ALSO I WORK IN WARE HOUSE ENVIROMENT BUT I HAVE WORKED BEFORE IN THAT KIND OF ENVIROMENT AND NOTHING HAPPENED TO ME THE ONLY DIFFERENCE NOW IS THAT I QUIT SMOKING. [/INST] Hi, Stoppage of cigarette smoking usually do not cause any rash. In my opinion, your rash could be due to an allergic reaction to a substance or could be due to an insect bite hypersensitivity. The accurate diagnosis could be made only after proper examination. So, I recommend you to consult your Dermatologist for arriving at a proper diagnosis and for initiating apt treatment. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Siva Subramanian, Dermatologist </s>