Your scalp is essentially an extension of your facial skin, just with more hair follicles and oil glands. This means it’s just as susceptible to irritation, allergic reactions, and sensitivity ...

Medically reviewed by Susan Bard, MD An itchy scalp can develop due to a variety of causes, including your hair-washing routine, head lice, psoriasis, and more. How to find relief depends on the cause ...

Bumps on the scalp can be caused by other skin disorders such as folliculitis, scalp acne, or dandruff. They could also show up due to an allergic reaction to a product or skincare routine.

Skin allergies can also cause hives and swelling deep in your skin, called angioedema. If you can't avoid contact with an allergy trigger, you can usually treat the rash and ease the itching. And ...

Unlike immediate allergic reactions that trigger obvious responses, delayed sensitivity reactions may cause skin eruptions 24-72 hours after exposure as immune complexes form and circulate before ...

Allergic skin reactions are common in babies and may occur as a result of irritants, ... babies younger than 6 months tend to develop eczema-type rashes on the scalp, face, ...

The most common skin reaction to hair dye is contact dermatitis — a skin irritation that occurs after touching a substance you’re sensitive to. [7] ... or another skin issue on your scalp, ...

Finally, pay attention to your eyelids, Miller says. If the thin, delicate skin in that area gets dry and itchy, it can be a sign of a product allergy or irritation, he says.