My shih tzu ( 19 months old, male, not neutered) definitely has a hyper arousal problem. Constant barking at everything. We can't watch tv without him barking constantly at everything, not just animals which are in every commercial so I can't avoid. He's had 2 trainers and Training doesn't work and neither do his calming supplements. When he has taken a remedy like arsenicum, it just makes it worse though I haven't tried it in a while. He has a licky mat, snuffle mat, essential oils,etc. I am hoping someone has a suggestion or I may need to rehome him.