There's a Chemists' Own for that

Chemists’ Own^® Decongestant Nasal Spray 18mL

Relief of nasal and sinus congestion of colds, flu, sinusitis, hayfever and allergies.

Alternative to Dimetapp® 12 Hour Spray.

Nasal and sinus congestion associated with:

Oxymetazoline Hydrochloride 500 mcg/mL

Adults and children over 6 years of age: 1 – 2 sprays in each nostril 2 to 3 times a day.

Use in children 6 to 11 years only on the advice of a doctor, pharmacist or nurse practitioner. Do not use in children aged less than 6 years.