My son's ige levels are high. we do allergen shots twice a week for 6 months now. what else could cause constant ear draining and high ige levels?

Usually allergy: In your son's case, the elevated IgE level is likely related to his allergic diseases. However there are also less common causes for elevated IgE level . Since 20% of the people don't respond to allergy shots and it may take up to a year to experience benefits from them, you need to talk to your allergist re. medication required to control his nasal congestion and ear issues.