This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
So valuable is the douche-bath in some mental cases that there has been a tendency to overdo this form of treatment, and even fatal results have been recorded from it in cases of extreme depression. It is important not to use it too long at a time. Ten to twenty seconds is sufficient for melancholic cases, and the patient should stand in warm water, so as to secure warmth of the extremities. One or two minutes of a shower-bath, should suffice for excited cases, and often a prolonged warm bath (thirty minutes), while cold is applied to the head, is the most soothing form of treatment. The Turkish-bath has recently been introduced into asylums, and with some excellent results.