Differential Diagnosis for Blisters on the Face
- Single Most Likely Diagnosis
- Impetigo: A highly contagious bacterial skin infection that often presents with blisters or sores on the face, commonly seen in children. It's likely due to its prevalence and the typical presentation of facial blisters.
- Other Likely Diagnoses
- Contact Dermatitis: An allergic reaction or irritation caused by substances like cosmetics, soaps, or plants, leading to blistering on the face.
- Herpes Simplex Virus (HSV): Can cause cold sores or fever blisters around the mouth and on the face, especially after viral infections or stress.
- Eczema (Atopic Dermatitis): A chronic condition that can lead to blistering, especially in severe cases or during flare-ups.
- Do Not Miss Diagnoses
- Stevens-Johnson Syndrome (SJS) / Toxic Epidermal Necrolysis (TEN): Life-threatening conditions usually triggered by medications, leading to widespread skin blistering and detachment. Early recognition is crucial for survival.
- Pemphigus Vulgaris: An autoimmune disease causing blistering of the skin and mucous membranes, which can be fatal if not treated promptly.
- Rare Diagnoses
- Bullous Pemphigoid: An autoimmune disease that causes blistering of the skin, more common in older adults.
- Epidermolysis Bullosa: A group of genetic conditions that result in fragile skin and blisters, often present from birth.
- Porphyria Cutanea Tarda: A disorder that can lead to blistering of the skin upon sun exposure, due to defects in porphyrin metabolism.