Allergies to sulfonamides, also known as sulfa drugs, are common. Sulfa drugs were the first successful treatment against bacterial infections in the 1930s.Theyâre still used in antibiotics and other medications, like diuretics and anticonvulsants, today.llergies to sulfonamides, also known as sulfa drugs, are common. Sulfa drugs were the first successful treatment against bacterial infections in the 1930s.
According to Madrasi.com, henna that is black is not henna---it is indigo. If you use it, your hair will turn black. However, because indigo is a natural colorant, it can be teamed with henna, but the powder will be red, not black.
Step One: How to mix henna for hair. Mix henna powder (100 grams is a good amount to start for medium-length hair) in a bowl with water and a bit of acid, like lemon juice, vinegar or orange juice. Add enough liquid to make it the consistency of pudding. Cover the container with plastic wrap and let it set until you see dye release (Google it).