When does the product information for Sudafed Blocked Nose Spray containing xylometazoline hydrochloride advise seeking medical advice for persistent nasal congestion?

For Sudafed Blocked Nose Spray containing xylometazoline hydrochloride, seek medical advice if nasal congestion persists or worsens or does not improve after 5 days, as alternative treatment may be required; do not use for more than 5 consecutive days.