<prompt> A man uses nasal drops continuously for long period of time. What can be the possible adverse effect?Mulberry turbinateAllergic rhinitisVasomotor rhinitisRhinitis Medicamentosa  <response>: Rhinitis Medicamentosa RM The addiction to over the counter decongestant nasal sprays is referred to as Rhinitis Medicamentosa or RM. As the name implies, RM refers to rhinitis congestion caused by medication medicamentosa. Prolonged use of over-the-counter OTC decongestant nasal sprays which contain topical vasoconstrictors such as Oxmetazoline hcl, Phenylephrine hcl and Xylometazoline hcl are known to cause RM. 