Persistent Low-Grade Fever and Throat Swelling: When to Seek Help - Influenza

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Persistent low-grade fever and swollen throat?


Hello, I would like to inquire about my symptoms.
I have been experiencing a low-grade fever for two months, with my body temperature fluctuating between 36.8°C and 37.3°C.
In the morning, my temperature is around 36.5°C, and by around 10 or 11 AM, it gradually rises to about 37.0°C to 37.2°C.
I do not have a cough or sore throat, but the right side of my throat feels swollen, and there is a small, movable lump on the right side of my neck, measuring a few millimeters.
I visited an ENT specialist, who diagnosed me with tonsillitis.
Although the medication helps improve my condition, the swelling returns.
If I want to see a specialist at a larger hospital, should I make an appointment with the Infectious Diseases department? Additionally, are there any precautions I should take before visiting the hospital? Thank you for your response.

Niming, 20~29 year old female. Ask Date: 2021/03/07

Dr. Yang Zongyan reply Influenza


It is recommended to visit the Infectious Disease outpatient clinic for further evaluation and to bring the medication list from the ENT clinic for reference.

Reply Date: 2021/03/07

More Info


Persistent low-grade fever and throat swelling can be concerning symptoms, especially when they last for an extended period, such as two months in your case. It’s essential to understand the potential causes and when to seek further medical help.

Low-grade fever, defined as a body temperature between 100.4°F (38°C) and 101.3°F (38.5°C), can be a sign of various underlying conditions. In your situation, the fever fluctuates between 36.5°C and 37.3°C, which suggests that while it may not be classified as a high fever, it is still persistent and warrants attention. The accompanying symptoms of throat swelling and the presence of movable, non-hard nodules in the neck could indicate several possibilities, including infections, inflammatory conditions, or even benign growths.

Given that you have already consulted an ENT specialist and were diagnosed with tonsillitis, it’s important to consider that recurrent or persistent inflammation of the tonsils can lead to chronic symptoms. The fact that your symptoms improve with medication but then return suggests that there may be an underlying issue that needs to be addressed. Chronic tonsillitis can sometimes lead to complications, including abscess formation or the development of other infections.

In terms of seeking further medical help, visiting a larger hospital and consulting with an infectious disease specialist could be beneficial. An infectious disease specialist can help determine if there is a chronic infection or another underlying condition that may be contributing to your symptoms. They may recommend additional tests, such as blood tests, imaging studies (like an ultrasound of the neck), or even a biopsy of the lymph nodes if they feel it is necessary.

Before your appointment at a larger hospital, consider the following steps:
1. Document Your Symptoms: Keep a detailed record of your symptoms, including the duration, frequency, and any changes in your condition. Note any other symptoms that may seem unrelated, as they can provide valuable information to your healthcare provider.

2. List Medications: Bring a list of all medications you are currently taking, including over-the-counter drugs and supplements. This information can help the doctor assess potential interactions or side effects.

3. Previous Medical Records: If possible, obtain copies of your previous medical records, including any tests or treatments you have undergone. This can provide the new doctor with a comprehensive view of your medical history.

4. Prepare Questions: Write down any questions or concerns you have about your symptoms and treatment options. This will help ensure that you cover all your concerns during the appointment.

5. Consider Accompaniment: If possible, bring a family member or friend with you to the appointment. They can help take notes and provide support.

In summary, while your symptoms may initially seem manageable, the persistence of low-grade fever and throat swelling over two months is a valid reason to seek further medical evaluation. Consulting with an infectious disease specialist at a larger hospital can provide you with a more comprehensive assessment and help determine the appropriate course of action. Remember, early intervention can often lead to better outcomes, so don’t hesitate to seek help.

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