Eye Blinking, Teeth Grinding - TIC

My Son is 3 years old and he is doing excessive blinking and 2 times we visited the eye doctor in 2 months they said no issues in the eye.

He started excessive blinking 8 months before and we noticed while seeing the TV. And he did teeth grinding in the night.

And later we noticed whenever he sees new people, if we something tell and sometimes reading he is doing the below type of blinking. (And sometimes he is alone he is doing excessive blinking). My friend home, new friends came, he was doing continuously blinking the way he blinked in the below video.

We contacted the neurologist they said it is TIC after the ASO Titer, EEG test is normal. The advised not to give alopathic medicine, because it has side effects.

I asked homeopathic to them, they said if it is not harm then give a try, but we will not explicitly tell about that.

So i summarize current complaints,

1. Continous Eye Bliinking watching tv, laptop and sometimes sitting idle, noticing some other activity, listening some thing -

Duration 8 Months ( Its reducing and coming again )

2. Teeth grinding in the night - Duration 2 months - Now its not there

3. Disturbance in the sleep with wakeup, speaking ( for 2 to 5 times per day). -- 1 Month

Please let me know in homeopathy it will be cured. And suggest a good homeopathy doctor in india (tamilnadu).