The most common Indic name for this spice is kala jira [काला जीरा] black cumin , archaically spelled kala jeera; the same name is, most often in English, sometimes given to an entirely unrelated spice, nigella (also called onion seed).
Uses for Black Seed Oil. Black seed oil is touted as a remedy for conditions such as allergies, asthma, diabetes, headaches, high blood pressure, digestive disorders, and rheumatoid arthritis. In addition, black seed oil is said to boost the immune system, reduce inflammation, and fight infections
It has also been used for “pink eye” (conjunctivitis), pockets of infection (abscesses), and parasites. Today, black seed is most commonly used for asthma, diabetes, hypertension, and many other conditions.