Suggest a few possible ways to avoid allergy.

It is better to avoid the allergic condition than to cure it through medicines and other remedial measures after inviting it due to our negligence. There is a proverb “Prevention is better than cure.”
We must adopt the following measures to avoid allergy:—
(a) Suggestions to avoid allergens.
(i) Wear a pollen mask when moving on the grass or doing house leaning.
(ii) Stay indoors in the morning (when the pollution is at its highest), and on windy days.
(iii) Read and understand food labels (for people with food allergy), just to save from taking contaminated foodstuff.
(iv) Keep windows and doors closed during heavy pollination seasons.
(v) Keep indoor plants and other sources of mildew away from home.
(vi) Don’t allow danger-producing animals in the house.
(vii) Wash sheets, mattress pad, and blankets weekly in hot water (at least 1300F).
(viii) Use physical (insecticide chemical), acaricide or á tannic acid solution.

(b) Some measures for those who can afford:
(i) Use the air-conditioner in the house and car
(ii) Use air fitters.
(iii) Use a dehumidifier.