In hard water areas, mineral residue from the water can leave a flaking scalp, which a hair conditioner and a few extra rinses can remedy. Sometimes a particularly scratchy hairbrush can cause flaking. Be sure that the bristles of your hairbrush have rounded tips to avoid scalp damage. Sunburn of he scalp is another cause for what may appear to be dandruff. Protect your hair and scalp with a hat when you spend time in the sun.
Severe dryness can result in scalp sores.
If your skin tends to be dry or ashy, the skin on your scalp is probably dry also. Clogged follicles in the scalp often cause dandruff, which is common to Afro hair. Some experts believe that dandruff is a bacterial infection or can be caused by stress. Dandruff can be treated with a massage before shampoo with a Scalp Therapy Treatment to help relieve stress. An itchy scalp can have many causes.