1. serving to relieve or reduce congestion, especially nasal or sinus congestion
Usage: commonly used in medical and pharmaceutical contexts

1. a medication or substance that relieves congestion, especially in the nasal passages or sinuses
Usage: often used interchangeably with 'decongestant'

Examples

• The decongestive spray helped clear her stuffy nose within minutes.
• He took a decongestive tablet to relieve his sinus pressure.
• Decongestive nasal drops are available over the counter at most pharmacies.
• The doctor recommended a decongestive to ease the patient's congestion.
• Many cold medicines contain decongestive ingredients.
• She used a decongestive inhaler before her flight to prevent ear discomfort.