allergies may be prevented in different ways:
Food allergies. Always read the labels and be careful when eating at restaurants, bakeries, delis, and street stalls. Make sure people are aware of the allergy. If unsure about food, ask for more information or do not eat it.
Animals. Limit pets to a single area of the home or try to keep them outside. Wash them and their bedding regularly. Vacuum the home frequently.
Hay fever. Stay indoors and avoid grassy areas when the pollen count is high. If this is unavoidable, take an antihistamine and wear wraparound sunglasses to limit pollen reaching the eyes.
Dust mites. Use allergy-proof duvets and pillows. If possible, remove carpets and fit wooden floors. Vacuum floors and change the bedding regularly.
Mold. Keep rooms and wardrobes dry and well-ventilated. Dry clothes outside. Where possible, tackle damp and condensation problems.
Allergic reactions on the face can be triggered by something that is eaten, inhaled, or rubbed onto the skin. A person might develop an allergic reaction on their face for the following reasons