As a preventive measure, make sure all meat products you eat have all required veterinary-sanitary certificates. Avoid uncooked meat or raw milk. If infected, clean your stomach with warm shungite water. Don’t eat anything on this day but drink half a glass of shungite water every 2-3 hours. You can also give yourself an enema with shungite water (with a pH of about 2-2.5).
The treatment kills salmonellae and recovery is expected within 2-3 days. If not, consult a doctor.