Nausea and vomiting blood water after drinking electrolyte water may be caused by allergy, gastric mucous membrane injury, gastric bleeding and other factors, which can be treated by oral anti-allergy drugs, acid inhibitors, antacids and so on. 1. Allergic reaction: If you are allergic to electrolyte solution, then nausea and vomiting of blood may occur after drinking electrolyte water, which can be treated by oral anti-allergic drugs, such as loratadine, etc. to relieve the symptoms. 2. Gastric mucosal injury: gastric mucosal injury is mainly caused by long-term dietary irregularities and bad habits, the symptoms of which are nausea, vomiting, acid reflux, etc., nausea and vomiting blood after drinking electrolyte water may be the phenomenon of gastric mucosal injury, the patient can be relieved by oral acid suppression drugs such as omeprazole, famotidine, etc.. 3. Stomach bleeding: gastric mucosa ulceration, under the stimulation of gastric acid will lead to gastric bleeding phenomenon, thus appearing nausea after drinking electrolyte water and vomiting blood, pain, acid reflux and other symptoms. Patients can be treated with oral antacid drugs, such as bismuth potassium citrate, to relieve symptoms. It is recommended to go to the hospital in time to find out the cause of the disease under the guidance of the doctor, and carry out targeted treatment, do not use drugs privately, so as not to aggravate the condition.