Rashes are a common skin condition that everyone experiences at one time or another. There are numerous causes of rashes, ranging from allergic reactions, infections, and medical conditions to insect stings. A doctor should evaluate severe rashes or those that get worse instead of better.
Rashes can occur for many different reasons and there are different types of rashes. Some common causes of rashes include:
- Allergens or irritants that directly contact the skin cause contact dermatitis. Examples of allergens include poison ivy and latex. Examples of irritants include toxic chemicals.
- Bacterial skin infections, such as Staph infections
- Eczema (atopic dermatitis) is a hereditary condition
- Fungal infections, such as athlete’s foot
- Impetigo is a bacterial infection that is common in children
- Insect stings
- Medical conditions, such as lupus
- Medication allergies
- Psoriasis is a hereditary condition
- Viral rashes are caused by viral infections, such as shingles and chickenpox
Symptoms of rashes differ depending on the cause. Some rashes are widespread, while others are in just one area of the body. Rashes can appear as reddened skin, red raised bumps, blisters, or scales. Rashes can itch and cause swelling. Rashes can make the skin appear dry, leathery, or crusty.