Flushing: What should I record when my face turns red after eating?

The keyword I would like to confirm during the consultation is 'flushing.' Since my face turns red after eating, I am wondering what information I should record before the consultation to help explain the situation. Would it be helpful to note the type and amount of food consumed, the time of the meal, when the redness started, and the time it took for it to subside?

I would also like to know how many days it is appropriate to keep a record to determine if the results of eating the same food can vary depending on the situation. Are there any materials, such as a food diary or photos, that would be helpful to bring with me before my visit? I would prefer to receive counseling based on my records rather than making assumptions about the cause beforehand.

Please let me know whether skin condition or dietary records are checked first during a facial flushing consultation, and what information should not be omitted. Thank you.