Severe skin reaction chemicals

Taking sulphur 6c but not helping., what potentcy do I take? I get itching when around chemical poisons or ate once UNorganic strawberries. IF I itch the itching goes to the max my skin turns hot & red "under the skin you could see a rash" travels up from both hands at the same time, sometimes will start at both ears at the same time & travel down my neck to arms, down my spine sometimes and once to my feet! My blood pressure went very high. Hadn't had one in about 7-8 years till now and they used to last a hour. This is my 2nd day and my arms itch but I am not itching but want to but don't want to suffer the consequences! 2 nights ago I was in a deep sleep when I itched violently but didn't wake up to take anything. Remembered when I woke up still itching and saw the scratches. I did a case study and; sulphur is the predominate remedy. Agar was next. I was told a few years ago that I have mercury in my blood. I am 67 I had had my amalgam fillings removed 22 years ago. My body has light tremors but my hands and legs worse.
I am hoping someone will tell me what potencies of sulphur.
When cured when I can add mercurous solubility 30c or if so, what other Mercury remedy do I need?
Please help as the itching is constant and I need to get to the root of this problem and make sure it does not resurface!
I worked 20 years with our offices chemically sprayed a non odor spray that gave me migraines. I have not worked for 7 years now. I can't tolerate most any perfume sprays & some essential scented oils which produce bad headaches.
Thank you kindly.
[Edited by HelpNeeded1 on 2017-09-25 16:27:13]