Mercurius Sulphuricus is a homeopathic remedy for diarrhea, watery stools, burning in anus. Sore tip of tongue. Sneezing from direct rays of sun. Diarrhea early in the morning, stool bursts out in a hot stream of yellow matter. Intense evacuations, like rice-water. Scanty, clear, scalding urine.. SOURCE: Boericke Materia Medica
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