Doctors regularly do a skin prick test to test for allergy to product or food ingredients. During the patch test, the doctor pricks the skin with the product to look for a reaction. A blood test can also be done to look for specific antibodies against certain products, suggestive of an allergy.
Allergies can occur after repeated use of a product as it may take time for antibodies, which causes the allergic reactions, to develop. As the face pack you used contains other materials, it may not be the cinnamon or honey that you are allergic to. Common allergens include plastics, additives, and rubber/latex.
Not all reactions are due to allergies. From your history, it may be due to irritation from skin contact with certain substances.
It's best to stop using the face pack and consult a doctor for treatment. Cheers!
Regards,
Dr. Terence Tan