What allergies are the most likely causes of urticaria?

Urticaria: Milk, cheese, egg, protein products, wheat, cereals, certain daals as used in india, peas, orange, fish, chicken, etc. Synthetic and natural food additives and artificially-flavored food articles can cause urticaria. However, medications, environment allergens, infections, infestations, emotional factors, autoimmune diseases, systemic and general disease states and idiopathic causes.See allergist.

Food allergy: Urticaria is a common presentation of food allergy. The common food allergens r peanut, tree nuts, milk, egg white, wheat, seafood, etc. But any food can cause allergy. Urticaria can also happen w drug allergy, sometimes pollen/animal allergy, but not as often. Sometime urticaria can happen w no obvious reason. See an allergist if it bothers u often, or u suspect it is due to an allergy.