‘Bodyguard’ star Salman Khan, who underwent a surgery in US recently to cure himself from Trigeminal Neuralgia (a nerve disorder that causes intense pain) is facing problems again. Apparently the level of pain after his surgery abroad had only gone down by 30 percent. But when he resumed work recently it went from bad to worse. Post surgery Sallu has been on his toes shooting for Kabir Khan’s next project ‘Ek Tha Tiger’ opposite ex-flame Katrina Kaif. He shot for the film in cold weather conditions in Dublin which has lead to him facing health issues again. He will be going back again for another round of treatment soon. The actor confirmed, “My pain, which had subsidized post surgery, has increased to 60 to 70 percent because of the cold weather in Dublin where I am shooting for my film. I have difficulty and feel intense pain while talking. I will be going back for the second round of surgery in another three months.”