Post Harpies zoster opthalmus effect.

I have severe pain time to time at my. right eye area and half head. From 04 Jul 17 onwards always water is coming from right eye. I m not able to see from my right eye since 01 month. Nowadays from 06 Aug 17 at 2100 hrs I have severe pain at my left temple.  Whenever any pain in my nervous at my head area starts my mouth is going to dry. I m feeling so thirsty. I m feeling to vomate. At some time vomiting also comes. Plz any body reply me about the disease and cure. Presently I m on treatment with Neurologist at Dwarka. I also visited at aiims, New Delhi in eye and Geriatric medicine department for treatment but they said pain will persist. I m not able to visit at Neurologist at aiims because I don't have any referral. At the age of 67 yrs I'm not able to handle so much pain regularly at my head area and eye. What I do. Plz any body reply me as soon as possible. Since one month due to Harpies Zoster my strength is low. I become so... weak I'm not able to walk for some distance.