Dermatology Library
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I
Ichthyosis:
Ichthyosis is the name of a rare genetic skin disease (there are actually several different types of ichthyosis) which causes the formation of dry,
fish-like scales on the skin's surface. Since it's an inherited disease, it isn't
contagious--you can't "catch" it. Ichthyosis causes the skin to build up and scale,
causing it to be extremely dry, amongst other problems. The condition often
begins in early childhood and is usually lifelong.
Impetigo:
Impetigo is a skin infection that is generally caused by one of two bacteria: Group A streptococcus or Staphylococcus aureus. Impetigo usually
affects preschool- and school-age children, especially in the summer months. A child may be more likely to develop impetigo if his skin has already been irritated
or injured by other skin problems, such as eczema, poison ivy, insect bites, or skin allergy to soap or makeup.
Infestations:
Parasitic attack or subsistence on the skin and its appendages,
as by insects, mites or ticks.
Also see: Insect bites and stings
Isotretinoin:
A powerful medication usually prescribed for cystic acne. This medication can be used for severe cases of rosacea, but only for selected candidates, as isotretinoin can cause serious side effects and birth defects.
Itching:
See: Pruritus