Many children around 3 years of age go through phases where they become picky eaters or prefer only liquids, especially after frequent colds, teething, force-feeding habits, excessive milk intake, or changes in routine. In most cases, the focus should be on understanding why the child is avoiding solids rather than immediately starting an appetite stimulant. Longifene syrup contains buclizine, which is sometimes used to improve appetite, but it may not be suitable for every child and can occasionally cause sleepiness or other side effects. Any appetite medicine for a young child should be used only after a paediatrician checks growth, weight, eating habits, and possible nutritional deficiencies. Try offering small portions of soft homemade foods at fixed times instead of forcing meals. Reducing packaged snacks and limiting excess milk can also help improve hunger for solids. Eating together as a family and making meals playful sometimes encourages children to try food naturally. If she is losing weight, seems weak, vomits often, or continues refusing solids for a long time, it would be best to consult a paediatrician for proper evaluation and guidance.