Is brain biofeedback therapeutic instrument useful for treating TIC disorder?

A safer method is to check whether this device has a medical device license. If there is a certificate, it will clearly list the related diseases that the equipment can be used to treat. This is the most scientific and authoritative way. If some equipment is unlicensed, or even if there is a certificate, the scope of treatment is not symptomatic, then indiscriminate use may delay treatment or aggravate the condition.