Is hoarseness and loss of voice a side effect of Fluenz Tetra?

You did not include the name of the medicine in your question. If your question is about the Fluenz Tetra vaccine tagged, please read on.

Hoarseness and loss of voice have not been reported with Fluenz Tetra. For a full description of the side effects and their frequency, see the package leaflet.

I am attaching a link to check the availability of the Fluenz Tetra vaccine and to make a reservation at the pharmacy of your choice:

https://www.gdziepolek.pl/produkty/30578/fluenz-tetra-przeciw-grypie-aerozol/apteki

In the event that hoarseness and loss of voice persists, I encourage you to consult a pediatrician. Perhaps there has been a development of infection. You can also take advantage of a teleconsultation via e.g. the Gdziepolek.pl portal:

https://www.gdziepolek.pl/telekonsultacja/z-pediatrą

Until you consult your doctor, you can use preparations to alleviate hoarseness, available in online and stationary pharmacies. Choosing the offer of an online pharmacy allows you to compare prices and order the preparation with home delivery or personal collection at the pharmacy. Preparations alleviating hoarseness, intended for children over 1 year of age, include:

Pelavo throat spray:

https://www.gdziepolek.pl/produkty/100089/pelavo-gardlo-spray-aerozol/apteki

Fjord spray:

https://www.gdziepolek.pl/produkty/102374/fiorda-spray-aerozol/apteki

I encourage you to familiarize yourself with additional materials that you may find useful:

https://www.gdziepolek.pl/kategorie/szczepionki-przeciw-grypie

https://www.gdziepolek.pl/artykuly/szczepienia-na-grype-dla-kogo-sa-przeznaczone