Hello, its not uncommon to have allergies. Often people have a runny nose, swollen eyes, lips, redness, etc. Its imperative that you try to remember what you were doing so that you can identify and avoid the allergen.
Dust allergy is very common and is provoked by almost nothing that is noticeable.
Next Steps
When you have such an issue, remove yourself from that environment and each your eyes with clean water.
Avoid foods that people are usually allergic to like eggs, peanuts, etc.
Health Tips
Consult a doctor if you have serious symptoms like shortness of breath on being exposed or rashes with redness.
You can take medication after consulting a doctor.
I myself am available here on practo.