Into the heart of sweet flag This particular quality has made vacha a helpful herb for supporting recovery from stroke, epileptic attacks and loss of speech. The primary application of vacha is to open the mind, improve concentration, clarity and speech. Vasambu helps in proper brain development, speech ability, better visual power, increased seminal power, brings beauty and neutralises any toxicities in our body in new born. A good home remedy for treating all kinds of stomach ailments like indigestion, stomach pain, flatulence.