What Is Contact Dermatitis? Do I Have It?

Answer: Contact dermatitis is distinguished by redness and irritation of the skin. The inflammation results from contact of a substance, either irritant or allergic, with the skin. Approximately 80 per cent of cases of contact dermatitis are the result of irritants on the skin. With allergic contact dermatitis the cause of the skin inflammation is a hypersensitivity response to a specific substance, after repeated allergen exposure.

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What Is Pseudopelade? Do I Have It?

Answer: Pseudopelade is characterised by the development of small, smooth patches without any clinical changes other than transient erythema (redness). The initial patch is usually on the crown of the head, but can occur anywhere on the scalp. It is generally regarded as a clinical syndrome, which may be the end result of any one of a number of different pathological processes due to a weakened immune system.

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What Is Lichen Planus? Do I Have It?

Answer: Lichen Planus is a skin disease which can appear on any area of the skin. The most common areas are the inner wrists, the forearms and the ankles, although lichen planus may also affect the nails, the inside of the mouth or, as in your case, the scalp, where it leads to hair loss. It is characterised by purple or reddish-purple bumps on the skin with flat tops, an uneven shape and which can be very itchy. Most sufferers are middle-aged adults, though it can affect people of all ages. In many cases, the cause of lichen planus can’t be found, although it can be aggravated by stress. Lichen planus of the scalp must be treated without delay or the hair may never grow back.