Thoothuvalai legiyam

Hello all.

My 2.5 yr old son has been having frequent colds/cough. My mother recently brought a box of thoothuvalai legiyam from Chennai (prepared by Annai Aravindh herbals).

I was wondering if anyone has experience with this lehyam.
And, particularly the one prepared by Annai Aravindh herbals.

I am a bit paranoid after hearing about herbal medicines containing all sorts of "other" stuff.

Do let me know what you think.

Thanks
Sangeetha