Breathe better with these sinus relief essential oil shower steamers. Each of these shower steamers are hand-crafted and infused with a blend of eucalyptus, rosemary peppermint and tea tree essential oils to help clear your sinuses for some immediate relief. Eucalyptus Essential Oil can help relieve the symptoms of for sinus & nasal congestion. It also encourages coughing and helps clear mucus out of your airways. Rosemary Essential Oil is an anti-inflammatory essential oil that may relieve swollen sinuses. Peppermint Essential Oil the active compound in peppermint essential oil, menthol, is a sinus soother thanks to its cooling effect. Tea Tree Essential Oil, the vapours in tea tree oil are effective at opening up the sinus passages and breathing airways while relieving nasal congestion.