My sister is 24 and her height is 5 feet 2 and weight 62.. she wants to reduce weight within 15 days ..what she can do? any medicine or diet ?

62KG/136.4 Pounds: Assuming you mean kilograms of course, she only needs to lose a few pounds. The best way remains decreasing caloric intake and exercising, as if you burn more calories than you take it, you will lose weight. Carbohydrates play an important role i dieting as they are often a big source of calories. No meds or crash diets are recommended for 15 day weight loss.