Herpes
There are two types of herpes simplex viruses: herpes simplex virus 1 (HSV-1) and herpes simplex virus 2 (HSV-2).
HSV-1 is most commonly associated with cold sores, while HSV-2 typically causes genital sores. However, there can be overlap, with HSV-1 sometimes affecting the genital area and vice versa. For most people, cold sores caused by HSV-1 are more of an inconvenience than a serious issue. But in individuals with weakened immune systems, the virus can cause a severe, widespread infection.
Another virus from the herpes family is varicella-zoster, which causes chickenpox. People who have had chickenpox are at risk of developing shingles later in life. Shingles is characterized by a rash that typically follows a single nerve distribution (a "dermatome"), which is why it often appears on only one side of the body. However, the rash can occur almost anywhere on the body.
Shingles may cause pain even before the rash appears, and this pain can be quite severe. Fortunately, if antiviral treatment is started promptly, it can help reduce the severity and duration of pain.
Dermatitis
Dermatitis refers to inflammation of the skin, but the term is often used to describe specific skin conditions.
Some common types of dermatitis include:
Contact dermatitis: This occurs when the skin becomes red or irritated after coming into contact with certain substances. It is one of the most common types of dermatitis, and almost everyone experiences it at some point. There are nearly 3,000 substances that can trigger irritant contact dermatitis, ranging from harsh chemicals to everyday lotions.
Seborrheic dermatitis: Known as cradle cap in babies, this condition causes dry, scaly patches of skin, often on the scalp.
Nappy dermatitis: Commonly referred to as nappy rash, this affects infants in areas covered by a diaper.
Stasis dermatitis: This type of dermatitis is often seen in people with severe varicose veins or swelling in the lower legs. It causes a reddish-blue rash, usually on the lower legs.
Atopic dermatitis: This is the most common form of eczema and is linked to an abnormal immune response. The term "atopic" refers to a group of conditions that tend to run in families, such as asthma, hay fever (allergic rhinitis), and atopic dermatitis. Diagnosing atopic dermatitis involves looking for both major and minor features of the disease.
The cause of atopic dermatitis is still debated. Various factors, including "leaky skin," immune system abnormalities, allergies, and increased sensitivity to chemicals and fabrics, are thought to contribute. However, no single cause has been identified.
Treatment typically involves a combination of strategies, including proper skin care for eczema and the use of topical or oral medications to control symptoms.
For more detailed information on skin health, visit www.verywellhealth.com.
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