Differential Diagnosis for Right Side Face Swelling and Rash
Single Most Likely Diagnosis
- Dental Abscess or Infection: The patient reports having a bad tooth on the right upper side, which is a common cause of facial swelling, especially if the infection has spread to the surrounding tissues.
Other Likely Diagnoses
- Allergic Contact Dermatitis: The patient slept with a new blanket and woke up with a rash on the left side of her neck, suggesting an allergic reaction to the blanket material.
- Peritonsillar Abscess: Although the patient mentions a bad tooth, a peritonsillar abscess is a possible cause of facial swelling, especially if the patient has a history of tonsillitis.
- Cellulitis: Bacterial infection of the skin and subcutaneous tissues, which can cause facial swelling and can be related to a dental infection or other sources of bacteria.
Do Not Miss Diagnoses
- Ludwig's Angina: A severe infection of the submandibular space that can cause facial swelling, difficulty swallowing, and shortness of breath. It is a medical emergency that requires prompt attention.
- Cavernous Sinus Thrombosis: A rare but potentially life-threatening condition that can cause facial swelling, especially if the patient has a history of facial trauma, infection, or other conditions that increase the risk of thrombosis.
- Parotid Gland Infection or Abscess: Infection of the parotid gland can cause facial swelling and can be related to a dental infection or other sources of bacteria.
Rare Diagnoses
- Sarcoidosis: A systemic disease that can cause facial swelling, skin rashes, and other symptoms, although it is less likely in this case.
- Angioedema: A rare condition that can cause facial swelling, especially if the patient has a history of allergies or other conditions that increase the risk of angioedema.
- Erythema Multiforme: A skin condition that can cause a rash and facial swelling, although it is less likely in this case.