Hair scalp can become infected if fungus or bacteria enter the scalp through the hair follicles or damaged skin. Bacteria cause some common infections, such as folliculitis and impetigo. Others, such as ringworm, are fungal.
Symptoms vary between infections, though most cause redness, itching. Recognizing the differences can help a person get the right treatment. When the infection is severe, inflammation is so intense that it can permanently destroy the hair follicles, leaving little bald patches.
Eczema or allergy of the scalp, which results in itching, flaking, or crusting of the scalp can create psychological stress and decrease in quality of life. It can be just an allergy to the hair products or a severe reaction to the hair color used. It is a long-term hair condition that requires ongoing treatment. However, developing a good hair care routine and learning to recognize and eliminate triggers can help you manage the condition effectively.