In order to obviate that irritation in which tenesmus consists, some benefit was found from the injection of emollient and anodyne clysters, to wash off and dilute the acrimony, and to sooth and heal the parts. A strong infusion or decoction of linseed or starch may first be given to the quantity of near a pint, to be evacuated after a short retention, and then a few ounces of the same, with thirty or forty drops of laudanum, to be retained for a length of time, in order to procure rest. Instead of this last, I have known a small quantity of warm milk, with syrup of poppies, used with advantage in private practice. I was at first tempted to think that a very frequent injection of such clysters would be very useful, by washing and healing the colon and rectum, and preventing farther exulceration. But besides the objection arising from the tenderness of the parts, which, in some cases, renders the operation itself painful, I found that if they were given oftener than once a day, they rather increased the uneasiness, and made the patient feel languid and exhausted; so true it is that no practical rule can be established from reason alone without being brought to the test of experience. The rectum seems to have a peculiar sensibility, and a remarkable consent with the whole system; for a stool will induce syncope, or even death, in a state of great debility. Clysters may be pernicious, even though they produce no evacuation of _feces_; and Sydenham has remarked, with respect to other diseases, that their unseasonable or too frequent use greatly debilitates and disturbs the patient. When not abused, however, they are of the most eminent service in this and other complaints.