1 Some babies are so sensitive to these foods that if the offending food is eaten by the mother, drinking her breast milk can cause a reaction. 2  Most children outgrow allergies to eggs, milk, wheat, and soy. 3  Peanuts, tree nuts, fish, and shellfish cause most of the allergic reactions in teens and adults.
Side effects can include skin discoloration and irritation. Long-term use, especially of stronger prescription corticosteroids, can cause thinning of the skin and disruption of normal hormone levels. Examples include: 1  Betamethasone (Dermabet, Diprolene, others). 2  Desonide (Desonate, DesOwen). 3  Hydrocortisone (Cortaid, MiCort-HC, others). 4  Mometasone (Elocon).
Other possible side effects -- including cough, fever, aches, headache and fatigue -- are similar to flu symptoms, although they are typically less severe. Side effects are usually mild, begin shortly after the injection and last 1 or 2 days.Severe allergic reactions occur in less than 1 in 1 million people receiving a flu shot, according to the Centers for Disease Control and Prevention. Allergic reactions are more common in people with an egg allergy.ide effects are usually mild, begin shortly after the injection and last 1 or 2 days. Severe allergic reactions occur in less than 1 in 1 million people receiving a flu shot, according to the Centers for Disease Control and Prevention.