The treatment of foodborne illness is primarily supportive. Supportive treatment includes drinking adequate fluids/ensuring proper hydration, eating small, low fat meals, and resting as needed. Because these illnesses can be passed from person to person, ensuring proper hygiene (hand washing, care with diaper changing) as well as staying home from work or school are important in preventing the spread of these infections.
Antibiotics are not usually necessary, although they may be required in certain types of bacterial or parasitic infections. Anti-diarrheal medications such as loperamide are not generally recommended and should typically be avoided unless recommended by a physician.
As mentioned above, more serious symptoms such as bloody bowel movements or bloody vomit, chest pain, irregular heartbeat, headaches, confusion, changes in vision, weakness, muscle paralysis, or hallucinations can be a sign of a severe infection that should be evaluated immediately by a medical professional. Furthermore, medical attention should be sought if your temperature is greater than 100.4°F (38°C) or if symptoms lead to an inability to eat, drink, or stay hydrated.