Pain radiating towards my right eye after fillers in tear trough down mediojugal fold. Is this normal? What should I do? (Photo)

I would recommend following up with the doctor who performed your procedure, especially if the pain does not subside in a few days. 

There are many nerves around the eye so any intervention can for a short while cause some strange sensations of pain. The filler would probably contain some local anaesthetic which again can interfere with normal sensation. The brand of filler is not relevant. If you are pleased with the result and the swelling is going down then just be patient for a few more days. It should settle.
Your remark about having treatment in another country is salient; it is always wise to have treatment in your own country just in case of problems after the treatment.