For example, if you smoke a pack a day, gradually cut back by having 1 less cigarette every day. Replacement products like gum and patches can help. Quitting is always the best option, but it’s not an easy one. Tapering at least makes withdrawal less painful.

Most nicotine can be flushed out for a urine test within 3 days. In regular and heavy smokers, cotinine may be detectable for weeks, so stop using nicotine as soon as possible.

Avoid overhydration. Too much water can lead to nausea, headaches, muscle cramps, and disorientation.

Drink ginger, dandelion, juniper, or green tea to detox for the test.

Foods such as eggs, onions, and garlic may stimulate your liver, leading to faster nicotine removal.

Vitamin C supplements are also very useful. Use them daily while also eating foods rich in vitamin C.

Try playing sports, doing yoga, or finding cardio workouts online. Stay hydrated while exercising by drinking water. Signs of dehydration include a dry mouth, feeling tired, decreased urine output, headaches, and dizziness.

Although secondhand smoke shows up on tests, it isn’t enough to cause a nonsmoker to fail it. You won’t be able to blame a failed test on secondhand smoke.

Seeing the results can give you an example of how long nicotine hangs around in your system. Use the results to adjust your detox plans accordingly.