A rash can be defined as a change in the skin’s appearance. Rashes are common and can have many causes, such as a drug reaction, a viral or bacterial infection, or a chemical or a new soap or lotion reaction. Food allergies can cause a rash, too, and these are particularly common in infants who develop eczema as a reaction to a milk protein allergy. Here are some common rashes to know:
This type of allergy can present itself as an itchy red rash, often over large parts of the body, that can appear anywhere from hours to weeks after exposure to a particular drug. A reaction can occur even if it’s a drug that has been taken in the past. A drug-induced allergy rash can often be mild, fading on its own after discontinuing the medication. Still, it can also be life-threatening if it’s accompanied by hives, elevated heart rate, and difficulty breathing. If these symptoms persist accompany a drug allergy rash, the user should seek medical treatment immediately.
Often confused with psoriasis, this condition looks like white scales over red, irritated skin that may be greasy and itchy. Things including stress and diet can cause flare-ups. Sometimes, the cause is unknown. Eczema can come and go. Some people outgrow it; others have it for life. Treatment ranges from no treatment, depending upon the severity, to special creams containing steroids. Other non-steroidal creams are available.
This rash appears as a red, thickened patches of skin covered with silvery scales. It’s usually itchy. The skin may break open and bleed. Psoriasis is a chronic condition usually first appearing in the mid-teens to early adulthood. It’s uncommon in young children. It has an autoimmune cause that is poorly understood. This illness can be treated by creams, steroids, methotrexate, and biological medications targeted at the body’s immune system.
Contact dermatitis often results from skin contact with an allergen. The skin will be red, itchy, scaly, and raw and may ooze fluid from small blisters. There will be a distinct border of normal skin touching the inflamed skin area where the allergen contact occurred. The best treatment is avoiding the allergen, but hydrocortisone cream and oatmeal baths may help ease the discomfort.