Are there any definitive remedies for folliculitis decalvans?

Folliculitis Decalvs: Folliculitis Decalvans (FD) is a rare neutrophilic infammation of the scalp characterized by painful, recurrent purulent follicular exudation resulting in primary cicatricial alopecia. However, unclear etiology makes FD treatment a difficult task. There is no permanent cure for this condition. It can be controlled to some degree by oral antibiotics with varying results from patient to patient.

Yes.: Long term antibiotic therapy with minoncyline, rifampin, or clarithromycin or a combination of the 3 can be curative. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3002406/