Senna is a plant that grow in Al- Hijaz (Western Arabia) and the best kind of it grows in Mecca, Senna is hot and dry in the first degree and it is a good, mild medication that does not cause any side effects. Senna helps against bile and black bile ailments and strengthens the heart, which is another good quality that this medication contains. Senna is useful against melancholic obsession and corporal incisions, relaxes the muscles and improves the hair. Senna in addition helps against lice, headache, mange, pustules, rashes and epilepsy. It is better to cook the Senno whole and drink three measures of its soup that cooking it crushed. In addition, it is better to cook the Senno mixed with violet flowers and red raisins, after removing the seeds.
Ar- Razi said ”Senna and fumitory help extract mature tumors (bodily wastes) and helps against leprosy and rashes, when one takes four to seven measures of each remedy.”