Two-year-old children with viral colds and fever and diarrhea can be treated with antiviral drugs (antiviral oral solution, etc.), antipyretics (ibuprofen granules, etc.), probiotics (Bifidobacterium triphylium capsules, etc.), and montelukast, etc., under the guidance of a physician. 1. Antiviral drugs: For the common cold, it is generally not suitable to apply antiviral drugs, if it is more serious, you can take antiviral oral solution and other treatments. For fever and diarrhea caused by influenza, oseltamivir phosphate granules can be applied under the guidance of a physician. 2. Antipyretics: If the temperature is below 38.5℃, physical cooling can be taken; if the temperature of children is above 38.5℃, ibuprofen granules and other antipyretics can be applied, and it is important to pay attention to not repeat the application or overdose application. 3. Probiotics: you can choose to apply bifidobacteria triple live bacteria, etc., which can regulate the intestinal flora and reduce diarrhea and other symptoms. 4. Montelukast: it can form a protective film in the intestinal tract, so as to reduce and relieve the symptoms of diarrhea. Two-year-old children with viral cold fever and diarrhea, it is recommended to go to the hospital, by the physician according to the child’s condition for treatment, the medication to follow the doctor’s orders, they can not just randomly use drugs.