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Allergic contact dermatitis, irritant dermatitis
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- This can be divided into allergic
contact dermatitis and irritant dermatitis. Irritant dermatitis is common during the early years if life.
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- Patchy or confluent skin eruptions
- Tiny blisters that may crust
- Scaling, red, thickened skin
- Itching, burning, stinging
- Large blisters occur
- Blisters may follow a line
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- Irritant dermatitis is caused by contact with substances that induce nonspecific Injury to the skin, such as:
- Saliva
- Citrus juices
- Prolonged contact with urine or feces (diaper dermatitis)
- Bubble bath
- Detergents
- Abrasive materials
- Soaps
- Soaps
- Detergents
- Organic solvents
- Poison ivy
- Poison oak
- Neomycin
- Hair dyes
- Latex
- Adhesive tape
- Nickel in jewelry
- Preservatives
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- Oral antihistamine
- Calamine or starch
- Topical corticosteroids (0.5-1% hydrocortisone ointment)
- Oral prednisone for severe cases for 12-21 days
- Course of contact dermatitis -- usually takes two to three weeks to resolve
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- Avoid skin contact with irritating or allergic substances.
- Wash allergic substances off as quickly as possible. Sometimes isopropyl (rubbing) alcohol is used to wash off organic solvents. Iodoquinal may help with nickel allergy. The best prevention, of course, is to avoid substances that induce this reaction.
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