Hi all. I have been attending queens square hospital of neurology for almost a year now and my neurologist is dr chong. I have be having botox injections for my migraines but the past 2 lots have not worked. I'm due there next month for another lot but don't want to travel all the way there to say it's not working. I really need to speak to dr chong before hand. Iv tried ringing the hospital but the line just keeps ringing.