Smoking Cigarettes on Passover



A question i received in a class on preparing for Passover:
Can someone smoke cigarettes on passover or do they have chametz in them? Can someone light up a cigarette on a holiday with a flame lit before the holiday? 


There are cigarettes that have chametz in them and smoking should be avoided on Passover because of this.There are many opinions to be stringent and not smoke on the holidays but there are those who are lenient.