Average monthly weather in Calcutta, India. Kolkata has a Tropical wet-and-dry climate. (80 Â°Fahrenheit). Summers are hot and humid with temperatures in the low 30's and during dry spells the maximum temperatures often exceed 40 Â°C (104 Â°F) during May and June.
Food allergy is an immune system reaction that occurs soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger signs and symptoms such as digestive problems, hives or swollen airways.n some people, a food allergy can cause severe symptoms or even a life-threatening reaction known as anaphylaxis. Food allergy affects an estimated 6 to 8 percent of children under age 3 and up to 3 percent of adults.
A food allergy is when the body's immune system reacts unusually to specific foods. Allergic reactions are often mild, but they can sometimes be very serious. In young children, common food allergies include milk and eggs. In adults, allergies to fruit and vegetables are more common.Nut allergies, including peanuts, are relatively common in both school-age children and adults. Symptoms of a food allergy can affect different areas of the body at the same time.Some common symptoms include: 1  an itchy sensation inside the mouth, throat or ears. 2  a raised itchy red rash (known as urticaria or hives). 3  swelling of the face, around the eyes, lips, tongue and roof of the mouth (known as angioedema).t is these chemicals that cause the symptoms of an allergic reaction. Almost any food can cause an allergic reaction, but there are certain foods that are responsible for most food allergies. In children, the foods that most commonly cause an allergic reaction are: 1  milk. 2  eggs.