Decongestants are a type of medicine that can provide short-term relief for a blocked or stuffy nose (nasal congestion).

They can help ease the symptoms of conditions such as Cold and flu , hay fever and other allergic reactions , and sinusitis .

They work byreducing the swelling of the blood vessels in your nose, which helps open upthe airways.

This page covers:

Types of decongestants

Who can take decongestants

How to use decongestants

Side effects of decongestants

Interactions with other medications

Content supplied by the NHS Website

Medically Reviewed by a doctor on 4 Jan 2017