Final answer:
Itching, facial flushing, and headache can be symptoms of various conditions including food allergies and in some cases, more serious health issues. They might also be related to general allergic reactions. Accurate diagnosis and treatment should be obtained from a healthcare professional.
Step-by-step explanation:
Symptoms such as itching, facial flushing, and headache can be indicative of various health conditions. It is important to consider additional symptoms to narrow down the possible causes. These symptoms may be associated with food allergies, which often include tingling or itching in the mouth, swelling, and abdominal pain, among others.
They can also be linked to more severe health issues in some cases, such as affecting motor coordination, breathing, and heart function. Allergies, in general, may result in symptoms like watery, itchy eyes, swollen tissues, and sneezing. Always consult a healthcare professional for an accurate diagnosis and proper treatment.