There are various types of skin rashes, although they all have one thing in common: they cause inflammation and irritation. Some of these rashes aren’t contagious, but they often cause embarrassment or discomfort to those who suffer from them.
Because they are different types, they have different causes. Therefore, they also develop with different signs and symptoms; and the same treatment isn’t always used to cure them.
Main types of skin rashes
Skin rashes are caused by a variety of factors, including heat, infections, allergies, medications, and immune system disorders. For an accurate diagnosis and appropriate treatment, it’s recommended that you consult a specialist.
Atopic dermatitis
This is one of the common causes of skin rashes. This condition manifests itself in outbreaks that come and go throughout life.
This often causes intense itching and redness. Depending on the stage, red patches with blisters, prominent skin folds, and scaling may also appear.
The cause of this condition is unknown, but studies suggest it most commonly affects people with a family history of seasonal allergies and a genetic predisposition or asthma. Environmental and dietary factors also play a role.
Psoriasis
Psoriasis is a chronic inflammatory skin disease with a strong genetic predisposition and autoimmune pathogenic traits. The prevalence of this condition is 2% of the world’s population.
The dermatological manifestations of this condition are varied. It can present as pruritic, erythematous, and sharply defined plaques covered in scales. The plaques may coalesce and cover large areas of the skin. These are most common in:
- Trunk.
- Scalp.
- Extensor surfaces of the extremities.
Allergic contact dermatitis
This is caused by direct contact with allergens. Often, only the area that came into contact with the substance is affected. The most common allergens are perfumes, costume jewelry, hair dyes, and cosmetics.
The most common symptoms are:
- Skin rash.
- Swelling and itching.
- Discharge of fluid, blisters and scabs.
Pityriasis versicolor
This is a skin pigmentation disorder caused by a lipophilic fungus called Malassezia spp. It was characterized by well-defined, slightly scaly, variable-color skin lesions.
Studies have concluded that there is a higher prevalence among young people in puberty, especially among women.
Seborrheic dermatitis
This is one of the most common. It is caused by inflammation of the most superficial layers of the skin. It is most commonly seen in areas with a high concentration of sebaceous glands.
Its cause is unknown, but obesity, extreme climates, neurological conditions, and stress are risk factors.
Some of its symptoms are:
- Reddened skin.
- Yellow crusts or scales on the face, ears, scalp, or other part of the body.
- Itching and resistant dandruff.
