Friend, when we see mucus with blood in the vomit this is a sign of inflammation in the upper gastrointestinal tract. Or, there could be something damaging the wall of either the esophagus (tube connecting stomach to mouth), stomach or first part of the intestines. This can be caused by many different medical conditions; it will be difficult for me to determine the exact underlying cause without a hands on examination and some testing. But, common causes are: Ingestion of a foreign body, infections, tumors, parasites or even part of a systemic disease. This is not related to him eating snow. To determine the exact underlying cause he will need a hands on examination by a veterinarian, xrays and blood work as initial screening test. Treatment will be based on exam and test results. In the meantime this is what you can do:
1- Do not give things like Pepto Bismol or imodium. Start him on Pepcid AC (famotidine) 10mg tablet every 12 hours for the next 7-10 days. You can buy Pepcid AC over the counter in any pharmacy.
2- No food or water for 4-6 hours. Need to give his gastrointestinal tract time to rest.
3- After 4-6 hours offer a small amount of water. Wait half hour, if no vomiting, offer small amount of rice (50%) and boiled boneless chicken or ground beef (50%) 4-6 times a day. Keep on this diet for several days then wean into regular diet.
4- Follow up with your family veterinarian for a hands on examination, xrays and blood work as initial screening test.
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