All medications have side effects. Hives, constipation, dry mouth, and headaches are common side effects in a lot of drugs. But in some cases certain side effect combinations can indicate an allergic reaction instead of being a side effect. Be sure to read the specific warnings on the drug to be sure.
Vitamin A. Vitamin A will help your hair and skin health. This antioxidant vitamin helps normalize cell growth, maintain healthy skin, form collagen and increase your cell renewal rate, according to the National Institutes of Health.
But theyâre also essential for healthy skin and hair, according to the University of Maryland Medical Center. Some dietitians claim that the more popular B vitamins â such as B-12 (also called cobalamin), biotin, and niacin â can help strengthen and condition hair. You should always try to get your vitamins from food first.