What preparations to use in children for lack of appetite and immunity?

Medicines used as an aid in the absence of appetite and in the prevention and treatment of upper respiratory tract infections include Bioaron System:
https://www.gdziepolek.pl/produkty/11333/bioaron-system-syrop/apteki

The drug is used in children over 3 years of age. It is recommended to administer it for 14 days. If there is no improvement after 14 days or your symptoms worsen, you should consult your doctor. Administration of the drug can be repeated after a 14-day break. Drug can be administered in cycles with at least a 14-day break between cycles.

Multivitamins with drug status include Juvit Multi: https://www.gdziepolek.pl/produkty/39402/juvit-multi-krople/apteki

Dietary supplements supporting immunity containing elderberry extract, zinc and vitamin C include Sambucol Kids: https://www.gdziepolek.pl/produkty/68803/sambucol-kids-syrop/apteki

You can read more about these preparations in the text: - https://www.gdziepolek.pl/kategorie/witaminy-i-suplementy-na-odpornosc-u-dzieci,

- https://www.gdziepolek.pl/artykuly/brak-apetytu-u-dzieci-i-osob-starszych,

- https://www.gdziepolek.pl/kategorie/witaminy-i-suplementy-dla-dzieci

In cities such as Warsaw, Wrocław, Łódź or Białystok, products can be ordered with instant delivery even in 1 hour thanks to the Wolt Drive service - check if the service is available in your location: https://www.gdziepolek.pl/koszyk/szybka-dostawa?src=zf