Contact dermatitis
Contact dermatitis is a rash caused by contact with an irritant, such as a chemical in soap, detergent, cosmetics, or clothing dye. It is also called irritant contact dermatitis.
Insect bites and stings
Rashes can also occur from insect bites or stings, which can cause inflammation and itching around the bite.
Prickly heat
Sweat is secreted on the skin surface and then evaporates. But in the case of skin sweat glands being blocked, the pores cannot release sweat under the epidermis and cause prickly heat.
Allergy
Rashes can be caused by an allergy to foods, medications, or other allergens, such as latex, chemicals, plants, or animals. Eczema and hives are two common types of allergic rashes.
Infection
You can also get a rash from an infection like chickenpox, shingles, or measles. Fungal infections, like ringworm and candidiasis, can also cause a rash.
When should I see a doctor?
Persistent or worsening symptoms: If the rash does not improve within a few days or becomes worse despite home remedies, you should see a doctor for examination and treatment.
Severe itching or pain: A rash accompanied by severe itching, burning, or pain may be a sign of a more serious condition that requires medical attention.
Sudden onset or spread: If the rash appears suddenly, spreads quickly, or covers a large area of the body, you need to get it checked out.
Related to other symptoms: If the rash is accompanied by fever, swelling, difficulty breathing, or joint pain, it could be a sign of an underlying illness.
Unusual Appearance: A rash with blisters, sores, or unusual colors (such as purple or black) may be a sign of an infection or allergic reaction that needs prompt treatment.
