What should you take into account when processing health data in hobby activities?

Information on a child’s allergies, illnesses or medication is often essential for guaranteeing the child’s health and safety in hobbies and leisure activities.
Health data is a special category of personal data, the processing of which is generally prohibited. The processing of health information can be permitted, for example based on the data subject’s consent. If health data is collected based on the consent of the child or their representative, they must only be requested to provide health data necessary for the child’s health and safety.
Data may not be collected just in case or for possible future needs. For example, it is not permitted to collect data on food allergies if there is no appropriate basis and need for it at the time. The hobby organiser must be able to demonstrate that the child or their representative has given their explicit consent for processing the child’s health data.