Sulphurous Acid; H2 S O3

SULPHUROSUM ACIDUM Sulphurous Acid; H2 S O3 Sulphurous acid, (tonsillitis (as a spray), acne rosacea, ulcerative stomatitis, pityriasis versicolor). Head.--Anxious, furious, disposed to fight. Headache better by vomiting. Ringing in ears.…