Nasal spray for colds and allergies – if you taste it, you are using it incorrectly, warns a Tiktok expert. Decongestant sprays contain active ingredients such as xylometazoline or oxymetazoline, which narrow the blood vessels in the nasal mucosa.
Nasal sprays should not be used for more than seven days at a time without a doctor's order, advises BARMER. Reapplication should only be carried out after a break of several days.