Melt seasonal sinus pain away with SinusCalm Allergy by Boiron. Unlike conventional medications that mask full-blown symptoms, SinusCalm Allergy works with your body to relieve nasal congestion, sinus pressure and pain, plus sinus headaches caused by allergies. These non-drowsy meltaway tablets are phenylephrine-free and won't interact with other medications, including those for allergies — one of the main causes of sinus congestion.