Allergies include immune system-based hypersensitive reactions.Allergies can result from antibody reactions or cell-mediated reactions. Watery eyes,sneezing,itchiness in the nose, gums, soles, palms,constriction in the throat and rash are the common effects of allergy.Home remedies for allergy includes a diet rich in citrus fruits, apples, red grapes,garlic and yoghurt.