How To Control Hair Loss In A Person With Thyroid Disorder?

Hello Sir, I am 37.having 1 son. I am having hair fall problem specially from both sides of my forehead which is visible easily. I need your help. Having acute gastric(from 2yrs), thyroid(from 6mnths n taking 50mg thyroxine),rheumatoid arthritis17yrs but without medication . But initially I had penicillin for one year. These are other health problem may help to solve my problem. Thanking you. Sashmita.