A withdrawal reaction may manifest itself in the short term after smoking, but it usually disappears within a short period of time, after which the body will also show positive effects, such as improvement in cardiorespiratory function and mental state. There are subjective and objective reactions to withdrawal. Subjective reactions such as headache and dizziness, fever, coughing, sneezing, thirst, nausea and vomiting, loss of appetite, muscle pains, anxiety, fear, and craving for cigarettes may occur in a short period of time after quitting smoking. Through examination, it will be found that people who quit smoking may have objective reactions such as increased body temperature, increased blood pressure, increased pulse rate, excessive sweating, insomnia, and hand tremors. These reactions are going away in a short period of time. When quitting smoking for a period of time, the heart and lungs are not overburdened and will repair themselves, resulting in an improvement in heart and lung function. The skin will also slowly become rosy and glowing, the quality of sleep improves, and the mental state becomes better after quitting smoking. If the withdrawal reaction is more serious, you must find a professional doctor to regulate.