+Tobacco.+--Tobacco has a special place reserved for it as an unfavorable influence on the course of syphilis. It is dangerous to others for a syphilitic to smoke or chew because, more than any other one thing, it causes the recurrence of contagious patches in the mouth. It is remarkable how selfish many syphilitic men are on this point. In spite of the most positive representations, they will keep on smoking. Not a few of them pay for their selfishness with their lives. These mucous patches in the mouth, often called "smoker's patches," predispose the person who develops them to one of the most dangerous forms of cancer, which is especially likely to develop on tissues, like those of the mouth and tongue, which have been the seat of these sores.
+Sexual Relations, Kissing, Etc.--Contagious Sores.+--Sexual indulgence, kissing, and other intimate contacts during the active stage of syphilis, as has been indicated, directly expose others to the risk of getting the disease. For that reason they should not be indulged in during the first two years of the average well-treated case receiving salvarsan and mercury by the most modern methods. Exceptions to this rule should be granted only by the physician, and should be preceded by careful and repeated examination in connection with the treatment. Under no circumstances should a patient kiss or have intercourse if there is even the slightest sore or chafe on the parts, regardless of whether or not it is thought to be syphilitic.
+Articles of Personal Use.+--Persons with a tendency to recurrences in the mouth or elsewhere should report to the physician any sore they may discover and should watch for them. Persons with syphilitic sores in the mouth or elsewhere should have their own dishes, towels, toilet articles, shaving tools, pipes, silverware, and personal articles, and should not exchange or permit others to use them.
+Secrecy.+--Professional secrecy is something to which the syphilitic is most certainly entitled when it can be had without danger to the public health. So long as a syphilitic in the contagious period carefully observes the principles which ought to govern him in his relations to others, his condition is his own concern. But there is one person within the family who should, as a rule, know of his infection if it is still in the contagious period, since it is almost impossible to secure coöperation otherwise. No matter how painful it may be, a person with syphilis, if advised to do so by his physician, should tell husband or wife the true state of affairs. There is no harder duty, often, and none which, if manfully performed, should inspire more respect. For those who will not follow his advice in this matter the physician cannot assume any responsibility, and is fully justified, and in fact wise, if he decline to undertake the case.