Differential Diagnosis for Red Face Rash
- Single most likely diagnosis
- Rosacea: This is a common condition characterized by a red, flushed face, often accompanied by small, pus-filled bumps. It's more common in fair-skinned individuals and can be triggered by various factors including sun exposure, stress, and certain foods.
- Other Likely diagnoses
- Acne: Especially inflammatory acne, can cause redness and rash on the face, particularly in adolescents and young adults.
- Contact Dermatitis: An allergic reaction or irritation from substances like makeup, skincare products, or hair dye can lead to a red, itchy rash on the face.
- Eczema (Atopic Dermatitis): This condition can cause dry, itchy, and red skin, and while it's more common on other parts of the body, it can also occur on the face.
- Sunburn: Prolonged exposure to the sun without adequate protection can cause a red, painful rash on the face.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Lupus: Systemic lupus erythematosus can cause a characteristic "butterfly" rash across the cheeks and nose, and missing this diagnosis could lead to serious complications.
- Cellulitis: A bacterial infection of the skin that can cause redness, swelling, and warmth, typically on one side of the face. It requires prompt antibiotic treatment.
- Erythema Multiforme: A skin condition characterized by target lesions, which can be triggered by infections or medications. It can be a sign of a more serious condition.
- Rare diagnoses
- Sarcoidosis: A condition that can cause small, raised bumps on the face, which can be accompanied by redness.
- Carcinoid Syndrome: In rare cases, this condition can cause flushing of the face, among other symptoms.
- Dermatomyositis: An inflammatory disease that can cause a distinctive red rash on the face, particularly around the eyes, as well as muscle weakness.