Sensory tics? Once thought rare, ma y in fact be common and consist of two types : isolated sensory tics, like tickles or itches, and premitiry urges, which appears just before motor tics.
No. Other than for the risks of any procedure (e.g. Bleeding, infection, injury to adjacent organs, etc...) or pill/medication (e.g. Side/adverse affects), I am not aware of any.