Hi! Thank you for your question! Eosinophils are white blood cells responsible for fighting parasites and are also cells associated with allergy
. High eosinophil counts can be due to several conditions and disease processes. Some of these include an allergic reaction
, parasitic and fungal infections, some forms of malignancies and autoimmune diseases, and others. However, we cannot pinpoint any specific cause with just complete blood counts. Your doctor is, therefore, correct in ordering more tests. In the meantime, try to be patient while waiting for the results of your tests. I hope you find about what is causing this elevation soon. Take care!