Headaches and migraine headaches can be caused by an allergic reaction to some food you have eaten. There are problems with your digestive system that can be an allergic reaction to something. Digestive symptoms of all types including diarrhea, and constipation, burping abnormal discomfort ,nausea and indigestion may occur. Many skin problems such as rashes a reddish discoloration patches of roughness can be cause by an allergic reaction on the skin. If you eat a shrimp or strawberry and have an instant reaction such as hives or a headache you could have a food allergy.

Milk allergies are usually related to cow’s milk, though usually any childhood milk allergies are gone by age three. However, sometimes these can last a lifetime and begin in early childhood. In fact, the allergic reaction to milk usually happens within minutes or might not occur for up to four hours, lasting up to a full day. More severe reactions can result in a shock reaction which requires emergency care.

A mold allergy happens when a person breathes in varied spores of mold and their immune system reacts, triggering varied reactions. In fact, such allergies are more than likely to occur if the weather has been damp or wet and things have not dried out. It is also possible to breathe in mold spores when growing plants inside, especially if the plants are over-watered and mold begins to grow on the surface. This not only kills the plants eventually, but can cause pneumonia in some people.