I stopped smoking for 5 days then i smoked one on the 6th day how long will it take to get cotinine out...i weigh 100 lbs and i need to pass a nicotin?

3-4 days: Cotinine should be out of your system in 3-4 days. Five days would be safer. Do yourself a favor and quit use of tobacco in any form. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.