Summary: Frequent respiratory infections are the main reason for medical consultations. Their main etiology are viruses. Unfortunately, despite the probable viral cause, antibiotic therapy is often initiated, which is why we encounter the phenomenon of antibiotic resistance more and more often. In the future, this may result in the inability to treat bacterial infections. Parents often ask how they can support their child's immunity. Despite the existence of many preparations that are widely advertised and promise to reduce the number, duration, and complications of respiratory infections, only some of them have proven effective. Among the most effective methods of natural immunostimulation, we distinguish proper diet and nutrition, physical activity, outdoor exercise, walking, avoiding stress, adequate sleep, relaxation, no exposure to air pollution and tobacco smoke. Plant preparations containing extracts of elderberry, echinacea, plantain and common plantain, thyme and African geranium are also proven to be effective in clinical trials. Thus, apart from pharmacotherapy, necessary in the event of the disease, special attention should be paid to the natural methods of strengthening the system.