Differential Diagnosis for Connie's Condition

Based on the symptoms described, the following differential diagnoses can be considered:

• Single Most Likely Diagnosis
  • Allergic reaction: Given the sudden onset of red, raised bumps all over the body, an allergic reaction to a medication, food, or environmental factor is a strong possibility. The fact that Connie has a history of complaining about a burning lesion on the inside of her nose when she gets sick suggests a potential allergic or immune-mediated response.
• Other Likely Diagnoses
  • Urticaria: This condition is characterized by itchy, raised hives and can be caused by allergic reactions, infections, or autoimmune disorders.
  • Viral exanthem: A viral infection could be causing the rash, especially if Connie has been feeling unwell.
  • Contact dermatitis: If Connie has come into contact with an irritant or allergen, it could have caused the red, raised bumps on her skin.
• Do Not Miss Diagnoses
  • Stevens-Johnson Syndrome: Although rare, this life-threatening condition is characterized by a severe skin and mucous membrane reaction, often to medications or infections. The presence of a burning lesion on the inside of the nose could be a sign of mucous membrane involvement.
  • Toxic Epidermal Necrolysis: Similar to Stevens-Johnson Syndrome, this condition is a severe skin reaction that can be life-threatening if not promptly treated.
  • Infectious causes (e.g., meningitis, sepsis): Although less likely, it's essential to consider infectious causes, especially if Connie has a fever, headache, or other systemic symptoms.
• Rare Diagnoses
  • Erythema multiforme: A rare skin condition characterized by target-shaped lesions, often caused by infections or medications.
  • Autoimmune disorders (e.g., lupus, rheumatoid arthritis): Although less likely, it's possible that Connie's symptoms are related to an underlying autoimmune disorder.

It's essential to ask additional questions to further narrow down the differential diagnosis, such as:

• What medications is Connie currently taking?
• Has she recently traveled or been exposed to new environments or substances?
• Are there any other symptoms, such as fever, headache, or joint pain?
• Has Connie experienced any similar episodes in the past?