Eosinophils can go back to normal because eosinophils are reactive white blood cells, their counts go down after the underlying cause of the elevated eosinophils is resolved or managed.
Treating the root cause and trigger of the elevated eosinophils allows the eosinophil levels to go down to normal.
It often takes a few weeks to several months for your eosinophils to go back to normal, depending on the trigger.
For example, eliminating trigger foods in EoE can also significantly reduce the levels of tissue eosinophils within around 6 weeks.
Common causes of eosinophilia are malignancies, adverse drug reactions, parasitic infections and allergic conditions.
Eosinophilia is the elevated level of eosinophils which are a type of white blood cell in your blood or tissues and a high eosinophil count often means that your immune system is responding to an inflammatory trigger.
Allergic and inflammatory conditions, parasitic and fungal infections, medication and drug reactions, malignancies and hematologic disorders and even primary immunodeficiencies and even idiopathic hyperesoinophilic syndrome can lead to eosinophilia.
Although eosinophils are crucial in the body for fighting off certain parasites and also for controlling infections, excessively high levels of eosinophils also known as eosinophilia can result in them infiltrating and damaging of health tissue, which leads to severe localized or even systemic complications.
When the eosinophils migrate out of your bloodstream and into your tissues, they will release toxic proteins, which cause chronic inflammation and organ damage.
The specific health issues that eosinophilia causes, depends on where the cells actually accumulate.
Heart damage or cardiovascular damage is the most dangerous complication with eosinophilia.
High eosinophil levels can cause inflammation of your heart muscle, which is also known as myocarditis, heart failure and even blood clots, which also increase your risk of heart attacks or stroke.
lung and respiratory issues can also occur with eosinophilia as infiltration of the airways causes severe inflammation, mucus hypersecretion and even airway constriction, which significantly worsens conditions such as asthma.
Gastrointestinal complications can also occur with eosinophilia, as excess eosinophils in your digestive tract can trigger Eosinophilic Gastrointestinal Diseases, which causes severe acid reflux, swallowing difficulties, stomach pain and even tissue damage.
Infiltration can also cause skin problems, like chronic rashes, severe itching or pruritus, hives or angioedema "swelling.
And in severe cases of eosinophilia, like Hyper eosinophilic Syndrome, eosinophils can also affect your brain and your nerves, potentially resulting in confusion, nerve damage or behavioral changes.
And chronic or extreme levels of eosinophils may also be a warning sign for underlying bone marrow disorders like chronic Eosinophilic Leukemia and myeloproliferative diseases.