What is a red rash on your skin its not bumpy and it does itch?

A red, itchy rash that is not bumpy could be caused by several different conditions. Some possible causes include:

1. Eczema: Eczema (also known as atopic dermatitis) is a common skin condition that causes red, itchy, and inflamed skin. Eczema rashes can appear on any part of the body and are often accompanied by dryness, scaling, and crusting.

2. Contact dermatitis: Contact dermatitis occurs when the skin comes into contact with an allergen or irritant. This can cause a red, itchy rash to develop on the skin. Common allergens include poison ivy, oak, and sumac plants, as well as certain metals, fragrances, and chemicals.

3. Hives: Hives (also known as urticaria) are red, itchy swellings on the skin that can appear anywhere on the body. Hives can be caused by a variety of factors, including allergies, infections, and stress.

4. Drug rash: A drug rash is a red, itchy rash that can develop as a side effect of certain medications. Drug rashes can range from mild to severe and can occur anywhere on the body.

5. Psoriasis: Psoriasis is a chronic skin condition that causes red, scaly patches of skin to develop. Psoriasis rashes can appear on any part of the body and are often accompanied by itching, burning, and soreness.

If you have a red, itchy rash that is not bumpy, it is important to see a doctor to get an accurate diagnosis and appropriate treatment. Your doctor may recommend a skin test or biopsy to determine the cause of your rash and prescribe medications or other treatments to help relieve your symptoms.