Inclusion criteria:

- Subject's age and medical condition in compliance with the intended use and
population

- Subjects who, from the investigator's judgement, should benefit from nasal wash in
accordance with routine medical practice

- Subjects with at least two nasal symptoms of intensity ≥ 3 (6 modalities intensity
SNOT-22 rating-scale) among the following:

- Nasal blockage/nasal congestion/ stuffy nose;

- Runny nose;

- Need to blow/clear the nose;

- Sneezing;

- Thick nasal discharge/secretions;

- Decreased sense of smell /taste (replaced by "noisy breathing/mouth breathing"
for infants)

- Subjects with impaired nasal breathing (score ≥ 3, 6-modalities intensity
rating-scale), induced by the presence of nasal symptoms

- For acute indications (only): subjects with symptoms started not later than 72 hours
prior to enrolment (Day 0).

- For allergic rhinitis indication: perennial allergic rhinitis with and without
seasonal allergic rhinitis

- For post-surgery indication: septoplasty and rhinoseptoplasty.

- Subject/parent willing to perform nasal wash following advices received from HCPs.

- Subjects (or parents for babies and children) agreeing to follow the study
requirements during the whole study period (up to 3 months).

- Subject (or parent for baby and children) able to understand verbal and written
local language and in capacity to fill-in questionnaire by himself.

- Subject having daily access to internet to answer online questionnaire.

- Subject or Parent/legal guardian of the subject has given freely and expressly
her/his informed consent.

- Subject affiliated to the health social security system or beneficiary of an
equivalent system

Non-inclusion criteria:

- Subject with contraindications according to each IFU.

- Hypersensitivity or known allergy to any component of the investigational products.

- Subject taking part in another clinical study or being in the exclusion period of
another clinical study.

- Subject already using nasal wash to manage his nasal symptoms.

- Subject already included once in the study.

- Subject with a member of his household already included in the study if still in the
follow-up phase.

- Subject deprived of liberty by administrative or judicial decision or under legal
guardianship.