BACKGROUND: Nasal irrigation is widely used in infants to relieve nasal obstruction. However, the nasal irrigation technique has not been standardized, and nasal irrigation practice habits (NIPH) in infants have not been investigated. Our objective was to provide an overview of NIPH in infants among parents, childcare workers, and healthcare professionals living in Belgium. METHODS: Parents, childcare workers, physiotherapists, nurses, pharmacists, and physicians were invited to fill in an electronic survey questioning their NIPH in infants. The survey was disseminated through social networks, practitioners' associations, and creches. RESULTS: The questionnaire was fully completed by 359 participants. A ready-made solution was used by 93% of participants, of whom 92% used physiological saline. The prophylactic use of nasal irrigation was considered appropriate or very appropriate by 65% of all participants. The irrigation frequency was particularly heterogeneous among participants. The optimal solution propulsion speed and solution volume to be used depended on the group of participants being interviewed. At least 37% of parents and 20% of physicians did not take a stand on the optimal irrigation volume to use in each age category. On average, 83% of participants described performing nasal irrigation by lying the infant on one side and delivering the solution through the top nostril. Finally, 74% of respondents declared that no risk was associated with this technique. CONCLUSION: Although some common NIPH viewpoints among the surveyed participants were identified, several disagreements were reported, reflecting the absence of a standardized method of nasal irrigation.