What would happen if someone uses Oxymetazoline nasal drops for years and years? What consequences could bring?

Rhinitis medicamen- tosa is prolonged use of nasal decongestant, oxymethazoline, which leads to habituation (one has to use more of the medication to get the same effect) and to inability to stop using the drops because of rebound congestion when med wears off. For these reasons, and the side effects of increased HR/BP, decong. drops should be used max. 7 days. Often need help of doc and use of steroid drops to stop.