Definition of scholar. 1 : a person who attends a school or studies under a teacher : pupil. 2a : a person who has done advanced study in a special fieldb : a learned person.
Allergy migraines can be triggered by an allergic reaction to food. With a food allergy, the immune system mistakes a food as harmful and releases substances that can trigger head pain and congestion. Migraines can also be caused by seasonal allergies or hay fever. Seasonal allergies can cause the sinuses to swell, which can trigger migraines. Allergy migraines can also be caused by common indoor allergens like urine, dried skin, pet dander, cockroach particles, mold and dust mite droppings.
1 Allergies never cause fever. 2  Both colds and allergies can cause coughing and sneezing, but coughing is more common with colds, and sneezing is more common with allergies. 3  A cold should clear up within a week to 10 days. 4  An allergy can drag on for as long as you're exposed to what's causing it. The mucus produced by a cold gets thick and may turn yellow or green. 2  Mucus is typically clear with allergies. 3  A sore throat is more common with a cold than with allergies. 4  Colds often bring on a low fever (especially in children).