Eat more meals a day, but eat less every time.
Pay attention to eat less and eat more meals, and eat some light foods, such as porridge, noodles, bread, etc. Generally, it can heal itself.
Take antiemetic drugs
It is necessary to take antiemetic drugs to prevent the blood vessels in the stomach and throat from being affected by long-term vomiting.
Severe bleeding needs treatment.
Of course, if bleeding is serious, bleeding diseases such as digestive system should not be ruled out, and these diseases should also be actively treated and controlled.