What is your constitution? If you are cold, you can try ginger black tea. I personally experienced a way to lose weight. The method is really good. You can check it online. Then eat tomatoes after dinner. Now I have lost a lot. I lost about 5 pounds in a week. I am quite satisfied with the effect. You ask to lose 4 pounds in 3 days, then you can only use some self-abuse methods! ! Otherwise, you can't reduce it!