system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Recurrent oral ulcers with pain and erythematous halo around them, diagnosis is –
assistant
The correct answer is  Recurrent oral ulcers with erythematous halos suggest the diagnosis of Aphthous ulcer.