Skin sensitivityIt is a condition wherein a person experiences blown up response of skin to certain stimuli.
Causes of skin sensitivitySensitivity of skin is caused by many unknown factors. Among the known factors environment, food, race, age, gender and genetic predisposition play a greater part.
The list of possible causative agents (allergens) and causes is exhaustive. A few of the causes are listed below:
- Long exposure to sunlight can be a cause
- Long exposure to heat
- Long exposure to cold and cold winds
- High humidity can be a cause
- Very dry conditions
- Heated dry air inside the house in winter
- Salts from sea water and sea-breeze
- Exposure to radiation and radiotherapy
- Dust, dust mites and dander of pets
- Chemicals in cosmetics
- Chemicals added to food products and preservatives
- Certain types of foods
- Flowers and pollen
- Medicines and formulations
- Chemicals in paints and varnish
- Formalin and formaldehyde present in products around us
- plastics, polymers, resins, adhesives, lacquers and rubber
- Contact with metals like, gold, silver, nickel, copper etc...
- Alkali in the daily-use products
- Acids in the daily-use products
Manifestations of skin sensitivityThe most common manifestation is eczema or dermatitis. This may lead to itchy lesions which may be dry, scaly and thickened or wet itchy lesions which may be raw and blistered.
- Chronic photo dermatitis (chronic actinic dermatitis or photo eczema) is a condition wherein dermis reacts to sunlight or artificial light and becomes inflamed.
- Contact dermatitis, a condition of sensitivity, causes lesion on contact with allergy causing substance (allergen) and is usually localized rash. Mostly surface regions (epidermis) is affected.
This causes itchy and burning inflammation which may take several days for resolving after the removal of the irritant.
Soaps, detergents, hormones and genetic and environmental factors have been found to trigger the rash. In some cases involvement of the fungus Malassezia furfur has been noticed. Excessive intake of vitamin A in children has been associated with this rash. Deficiency of B vitamins like biotin, pyridoxine and riboflavin has been found to cause seborrhoeic dermatitis and sensitivity.
Current topic: Causes of skin sensitivity
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