A change from one application to another will be found necessary in almost all cases.

In obstinate cases the x-ray treatment can be used, as it has proved itself valuable in some instances; as in other diseases, it should be employed cautiously.

What would you advise in regard to shaving?

When bearable (and after a few days' application of soothing remedies it almost always is), it is to be advised in all cases, as it materially aids in the treatment. After a cure is effected it should be continued for some months, until the healthy condition of the parts is thoroughly established.

When is depilation advisable as a therapeutic measure?

When the suppurative process is active, in order to save the follicles from destruction; incising or puncturing the pustules will often accomplish the same end.

Depilation is in all cases a valuable therapeutic measure, but it is painful; as a routine practice, shaving is less objectionable and, upon the whole, is probably as satisfactory. Those who make free use of the x-ray commonly push it to the point of producing depilation.

Dermatitis Papillaris Capillitii.

(Synonym: Acne Keloid.)

Fig. 29.