Castor oil effectively treats ringworm (4), a common and stubborn skin problem across all age groups. The active compound called undecylenic acid, found in castor oil, helps treat ringworm successfully. Here is a step-by-step guide to its use. 1  Dilute 2 teaspoons of castor oil in 4 teaspoons of coconut oil.2  Alternatively, you can wash castor leaves in water and soak them in coconut oil for few hours, and then heat gently. 3  Apply over the affected area and cover with a cotton cloth.ere is a step-by-step guide to its use. 1  Dilute 2 teaspoons of castor oil in 4 teaspoons of coconut oil. 2  Alternatively, you can wash castor leaves in water and soak them in coconut oil for few hours, and then heat gently. 3  Apply over the affected area and cover with a cotton cloth.
In medicine, melena or melaena melÃ¦na refers to the black tarry feces that are associated with upper gastrointestinal. bleedingelena is often a medical emergency as it arises from a significant amount of bleeding. Urgent care is required to rule out serious causes and prevent potentially life-threatening emergencies.
The origin of melena is dated to the early 19th century via modern Latin, via Greek melaina (feminine of melas, black). The most common cause of melena is peptic ulcer disease. Any other cause of bleeding from the upper gastrointestinal tract or even the ascending colon can also cause melena. Melena may also be a sign of drug overdose if a patient is taking anticoagulants, such as warfarin.