Hodgkin's disease is a type of lymphoma cancer that affects the lymphatic system. Risk factors include certain viruses, a weakened immune system, age, and family history. It is diagnosed through blood tests, x-rays, and biopsy of lymph nodes. Treatment involves chemotherapy and radiation therapy. Hives are raised, itchy welts on the skin caused by allergic reactions. Treatment depends on severity but may include antihistamines, epinephrine shots, or steroids. Elephantiasis causes thickening of the skin and swelling, especially in the legs and genitals, due to parasitic roundworms spread through mosquitoes. It is diagnosed through blood tests and treated through medication and cleaning affected areas