Sterimar Stop & Protect - Cold and Sinusitis Relief (20ml). Fast and effective relief from congestion - acts in 2 minutes.. STÉRIMAR Stop & Protect Cold & Sinusitis Relief is scientifically proven to act in 2 minutes, to unblock and relieve nasal passages.. The hypertonic solution with a base of 100% natural sea water creates a natural osmotic effect to gently draw and drain even thick mucus, allowing you to breathe more naturally and helping prevent secondary infection.
