Yes, it is very common for toddlers to have a decreased appetite or even refuse solids following a bout of illness like a viral fever or cold. During this period, prioritize hydration and offer whatever they are willing to eat—even if it is just a few bites or favorite foods like smoothies and soups. Avoid force-feeding, as this can create negative associations with mealtimes. They typically return to their normal eating habits within a couple of weeks once they have fully recovered.