Common Name: Sulphuric Acid  Causes & Symptoms for Dr. Reckeweg Acid Sulphuricum Sulphuricum Acidum has marked action on mouth ulcers. Aphthous ulcers in the mouth with offensive breath. Gums bleed easily. It is a remedy for pyorrhea.  Sulphuricum Acidum is also a chief remedy for many gastro-intestinal disorders. There are sour erructations with heartburn.  There is craving for alcohol and aversion to the smell of coffee, Sour vomiting, Desires fresh food. There is a sensation of relaxed feeling in stomach.