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What are the causes of elevated eosinophil levels?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I did a blood test last month, and everything came back normal, except my eosinophils were at 9.5. I did another test two weeks ago, and the eosinophils were at 11. The doctor gave me antihistamines to see if the levels would go down. I retested yesterday, and now my eosinophils are down to 8.2, but my lymphocytes have gone up to 45.2, even though they were 35 two weeks ago. I have been drinking tulsi and ginger tea twice daily for the past two weeks.

Please help.

Hello,

Welcome to icliniq.com.

I understand your concerns.

Your eosinophil count is slightly elevated, but not significantly so. Mild allergic reactions, viral infections like the flu or cold, or even intestinal parasites can sometimes cause a temporary rise in eosinophils. As for your lymphocyte count, it is still within a reasonable range, so there is no need to worry. If you are not experiencing any symptoms, there is really no cause for concern. Blood counts can fluctuate from time to time; it is normal and often not something serious. Your hemoglobin, white blood cells, and platelets are all within normal limits, which is a very good sign. Please do not stress too much about the eosinophil count.

Our blood cells can increase or decrease depending on the body's response to infections. When the body is fighting something, certain cells rise, and once the issue resolves, they usually return to normal. Try not to panic over minor variations in blood results. If you are not feeling unwell, then you are likely in good health. However, if you do have any stomach issues, allergies, or other specific symptoms, it is important to address those directly. Often, once the underlying issue is treated, eosinophil levels normalize on their own.

I hope this helps put your mind at ease.

Thank you.

Patient's Query

Thank you for the reply, doctor.

My lymphocyte levels have usually been in the 35 to 37 range, mostly around 35. Even two weeks ago, they were at 35. The only time it was higher was five years back, when it reached 43. At that time, my eosinophil count was 7, but I remember I had taken an antibiotic, and, after retesting a week later, it returned to normal. This time, however, my eosinophil count has been consistently high for over a month, and I am feeling incredibly anxious about it.

My diet is not very healthy. I eat fried food almost every day, although I only have two meals a day and probably consume fewer than 2000 calories. I do not have any major symptoms, but I often wake up in the middle of the night sneezing and with a runny or congested nose. After my second blood test showed my eosinophils at 11, my doctor prescribed an antihistamine. After taking it, the eosinophils dropped to 8. However, I am still not sure if I actually have allergies, since I continue to have nasal congestion at night, even while taking the antihistamine.

Should I consider doing any further tests, doctor?

Hello,

Welcome back to icliniq.com.

Yes, you should consider seeing a medical specialist to check if you have any allergies or asthma. You might benefit from trying Montelukast tablets for a month to help control the allergy symptoms. It seems you may be prone to allergies, especially since you are experiencing sneezing and nasal congestion. But do not worry too much, this level of eosinophils is not considered significantly high, and it is usually not harmful.

Try to include more fruits and vegetables in your diet. If you are experiencing stomach pain, loose stools, or itching around the anus after passing stool, you could also consider taking a deworming tablet. There is no need to repeat blood tests too frequently. A complete blood count (CBC) every two months is more than enough. You could also start taking folic acid and vitamin B12 supplements, which can help support overall health.

I hope you start feeling better soon. Stay happy and positive, and please do not stress.

It does not seem like anything serious.

Take care!

Patient's Query

Thank you for the reply, doctor.

I just wanted to ask if my MPV is a bit high at 12.37. Is that fine? I tested MPV last month as part of a blood test package that was on offer.

Please advise.

Hello,

Welcome back to icliniq.com.

MPV (mean platelet volume) refers to the size of your platelets. When new platelets are being produced, MPV tends to be on the higher side. That is why I asked you to send me your complete blood count (CBC) report, so I can analyze the results more accurately. If your platelet count is within the normal range, then a slightly high MPV is not significant.

However, if your platelet count is low, a high MPV may indicate that your body is producing new platelets. MPV stands for mean platelet volume, which reflects the average size of your platelets. Please share the detailed CBC report again, as the previous ones are not opening properly.

When there is an infection or allergic reaction in the body, it is normal for new cells to form. So please do not worry, it is a natural response.

Thank you!

Patient's Query

Thank you for the reply, doctor.

The platelet count in my first test last month was 180. Two weeks ago, it was 190, and in the latest test this week, it increased to 212. I started taking zinc, an antihistamine, magnesium glycinate, and B-complex vitamins, as well as iron supplements that also contain zinc and B vitamins. This was during the two weeks between the test from two weeks ago and this week's test. I also occasionally take a vitamin C powder called Ener-C, which contains zinc, vitamin C, and other vitamins.

Hello,

Welcome back to icliniq.com.

This means that new platelets are being formed, so there is no need to worry about the raised MPV. Just continue getting a CBC every two months. Everything will be fine.

Thank you.

Patient's Query

Thank you for the reply, doctor.

Please keep me in your thoughts and prayers, that everything will be within the expected range in the next two months.

Hello,

Welcome back to icliniq.com.

Yes, indeed. In the meantime, it would be wise to consult with an allergy specialist to identify any potential allergies early on.

Take care.

Medically reviewed byiCliniq medical review team

Published At June 22, 2025
Reviewed AtJuly 10, 2025

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