Differential Diagnosis for Rash on Face
- Single most likely diagnosis
- Acne: This is the most common skin condition affecting the face, characterized by comedones, papules, pustules, and sometimes cysts and nodules. It's often associated with puberty, but can occur at any age.
- Other Likely diagnoses
- Rosacea: A chronic skin condition causing redness, pimples, and swelling, typically on the face. It's more common in fair-skinned individuals and can be triggered by various factors including sun exposure, stress, and certain foods.
- Eczema (Atopic Dermatitis): A condition that makes your skin red and itchy, and can appear anywhere on the body, including the face. It's common in children but can occur at any age.
- Contact Dermatitis: A type of inflammation of the skin that occurs when the skin comes into contact with an irritant or allergen, leading to redness, itching, and small blisters. Common allergens include nickel, fragrances, and certain chemicals in cosmetics.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Lupus: A chronic autoimmune disease that can affect various parts of the body, including the skin, joints, and organs. A characteristic butterfly-shaped rash on the face is a common symptom.
- Sarcoidosis: An inflammatory disease that affects multiple organs in the body, but can also cause skin symptoms, including rashes on the face.
- Cellulitis: A bacterial skin infection that can cause redness, swelling, and warmth of the skin, and if not treated promptly, can lead to serious complications.
- Rare diagnoses
- Sjögren's Syndrome: An autoimmune disorder that primarily affects the glands that produce tears and saliva, but can also cause skin rashes.
- Dermatomyositis: A rare inflammatory disease characterized by muscle weakness and a distinctive skin rash.
- Erythema Multiforme: A skin condition characterized by target lesions, which can appear on the face among other areas, often in response to an infection or medication.