According to Sushruta, Vamana (therapeutic emesis) is the appropriate treatment when blood accumulates in the stomach. Vamana helps to expel the toxins or abnormal substances from the upper part of the body, including the stomach, by inducing vomiting. This therapy is commonly used when there is an excess of Kapha or Ama (toxins) in the body, leading to conditions such as excess blood accumulation in the stomach.
- Virechana (purgation) is useful for Pitta related disorders, not specifically for blood accumulation in the stomach.
- Nasya is primarily used for disorders related to the head, like sinus problems.
- Shirovirechana is used in specific conditions affecting the head and brain, not for blood accumulation in the stomach.
Thus, the correct answer is Vamana.