You may be having atopic diathesis. And it may be the reason to have multiple allergies.You are allergic to eggs and may be allergic to other food factors.
Contacts with grass,house dust,house dust mite,pollens,wool,fume and so many other allergens may cause allergic dermatitis
Some inhalants may also cause allergic dermatitis.
So,you should take all precautions to prevent allergic reaction
Antihistaminics like levocetirizine
may be taken,whenever you feel to have allergy. If the allergy is embarassing, you may take steroids in tappering dose.
Still, you consult dermatologist
I hope you got my answer.
Dr. Ilyas Patel MD