Beer can add body, fullness, softness, and shine to dull, flat hair. The proteins found in the malt help to coat, rebuild, and repair damaged hair. For the same flat beer works better than fresh and malt beer can also be used. But for hair fall, you need to pay attention to your diet. Your hair needs vitamins and minerals to grow that it can only get from the bloodstream. So if you want to speed up your hair growth and thickness you should limit the intake of fat and salts. Selenium, zinc and magnesium are some of the minerals that your hair needs and also amino acids and vitamin E will help in growing hairs.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Yes washing hair with beer makes hair very smooth silky and shiny even you could go for beer shampoo that will also help you out to give an good effect to your hair.