First many of big pharma meds effect hair, it fried mine. Things to take to improve hair, blackstrap molasses, green peppers,msm, biotin. Cipro or other floxin drugs will cause eye floater. Back to itchy scalp, soak head in a good oil, coconut, olive, or castor, do this for several hours. Then do the no poo shampoo, make a paste of baking soda and water rub into scalp, rinse, because of oil repeat, then rinse with apple cider vinegar and water(one teaspoon to eight oz
of water works for me. This has done wonders for my hair.