Asked for female, 32 years old from Hyderabad
Allergies itself have many causes, such as viral, any food product allergies, seasonal allergies, etc. Any of these can lead to face allergies.
You just need to take sulphur 200 1 dose and then start taking crab-apple (it is purely a medicine, not a non-veg substance within it) for 3 times in a day for 1 week.
You will be completely alright.