You are exhibiting the symptoms of liver disease. Swollen legs and stomach, along with body itching, are the symptoms of people with the said condition. The entire process of removing toxins from the body and the liver's poor functioning that leads to the development of these symptoms must be considered. At the pharmacy, you can purchase medications for your liver that can help you reduce the swelling caused by your liver, for instance, diuretics and antihistamines. But I insist you seek medical help before getting any treatment.