It can be frustrating when a nasal spray doesn't relieve your blocked nose. Since the spray you used contains xylometazoline, which is a decongestant meant for short-term relief, it’s important not to use it for more than 3 consecutive days to avoid rebound congestion.

• Try using saline nasal sprays or rinses to help clear nasal passages gently without medication.
• Keep yourself well-hydrated and use a humidifier or steam inhalation to ease nasal congestion.
• Avoid irritants like smoke or strong odors that can worsen nasal blockage.
• If symptoms persist beyond 7–10 days, worsen, or are accompanied by high fever, facial pain, or difficulty breathing, you should see an ear, nose, and throat (ENT) specialist for further evaluation.

If you want, I can explain how to use saline rinses or other home remedies safely. Meanwhile, consulting an ENT doctor would be the best next step.To narrow down potential causes, we will need some more information.I understand that you're experiencing a cold and a blocked nose and that a nasal spray hasn't provided relief. Please tell me your age and gender.