Introduction
Every year, when the rains arrive and water collects in pots, tyres, coconut shells and roadside drains across the delta districts, fever cases rise. Most of these fevers are mild, but dengue is the one that can turn dangerous quickly, often just when the patient seems to be getting better. Knowing the symptoms, understanding what a platelet report does and does not tell you, and recognising the signs that mean it is time to go to hospital can make a real difference for your family.
What is dengue fever?
Dengue is a viral infection spread by the bite of an infected Aedes mosquito. These mosquitoes typically bite during the daytime and breed in clean, stagnant water. Dengue does not spread directly from one person to another. Many people have a mild illness or none at all, while some develop a more serious form that needs close medical monitoring.
Dengue fever symptoms
Dengue usually begins suddenly with a high fever. Along with the fever, people commonly have:
- Severe headache, especially behind the eyes
- Pain in the muscles, joints and bones, which is why dengue is sometimes called “breakbone fever”
- Nausea and vomiting
- Skin rash
- Marked tiredness and loss of appetite
- Mild bleeding from the nose or gums in some people
Many other illnesses, including viral fevers, typhoid, malaria and leptospirosis, can look similar in the early days. This is why symptoms alone cannot confirm dengue, and why a doctor’s assessment and the right tests matter.
The course of the illness: why the days after the fever matter
Dengue is best understood as an illness that moves through stages.
The fever stage. High fever, body pain and headache dominate. Most patients who are drinking well and have no warning signs can be cared for at home under medical advice.
The critical stage. This is the part many families do not expect. Around the time the fever begins to settle, some patients become worse instead of better. Fluid can leak out of the blood vessels, the blood may become thicker, and platelets can fall. This is when warning signs tend to appear.
The recovery stage. The body gradually reabsorbs the leaked fluid, appetite returns and energy improves. A rash and itching may appear, and tiredness can linger for some time after the fever is gone.
How long does it take to recover from dengue?
There is no fixed timeline. Fever usually lasts for several days, and most people with uncomplicated dengue recover over the following period. Weakness and fatigue can continue for a good while afterwards, particularly in adults. Recovery is slower if the illness becomes severe, or if the person has other conditions such as diabetes, kidney disease or heart disease. Your doctor will guide you on when it is safe to return to school or work.
Dengue tests: NS1 and other blood tests
Several tests may be used, and the right choice depends on how many days you have been ill.
- NS1 antigen test: This detects a protein from the virus and is most useful in the early days of fever.
- Antibody tests (IgM and IgG): These become more useful later in the illness, as the body starts producing antibodies.
- Complete blood count: This shows platelet levels and helps doctors see whether the blood is getting thicker (haematocrit). Doctors often repeat it to watch the trend.
- Other tests: Liver and kidney tests, or an ultrasound of the abdomen, may be advised if there is pain, breathlessness or a concern about fluid collection.
A negative result very early in the illness does not always rule out dengue, so your doctor may repeat or combine tests.
Dengue platelet count: what it really means
Platelets are blood cells that help the blood clot. In dengue, the platelet count commonly falls, and families understandably become anxious when they see a low number on the report. However:
- A low platelet count by itself does not decide whether you need admission. Doctors look at the whole picture: your symptoms, how well you are drinking fluids, your blood pressure and pulse, urine output, and the blood thickness (haematocrit).
- The direction of the trend matters. A count that keeps dropping, especially together with warning signs, is more concerning than a low but stable reading.
- Many patients with a low count do well with rest, fluids and monitoring. Platelet transfusion is not routine for every low report. It is considered by doctors in specific situations, such as significant bleeding.
- A recovering patient’s platelet count usually rises on its own as the illness settles.
Please avoid chasing the number on your own. Do not demand platelet transfusion or take unprescribed “platelet-boosting” products. The safest approach is to follow your treating doctor’s plan and attend every repeat blood test.
When to get admitted: warning signs you should never ignore
Go to a hospital without delay if a person with fever or recent dengue has any of the following, especially as the fever begins to settle:
- Severe or persistent stomach pain, or tenderness in the upper abdomen
- Repeated vomiting, or inability to keep fluids down
- Bleeding from the gums or nose, blood in vomit, or black or bloody stools
- Unusual drowsiness, irritability, restlessness or confusion
- Cold, clammy or pale skin, or very cold hands and feet
- Very little urine, or none for many hours
- Fast breathing or difficulty breathing
- Extreme weakness, or fainting on standing
Doctors may also advise admission, even without obvious warning signs, for people who face higher risk or cannot be safely monitored at home. This includes infants and young children, pregnant women, older adults, and people with diabetes, kidney disease, heart disease or other serious long-term conditions. Living far from a hospital, or having no adult who can watch the patient closely, can also be a reason for admission.
If you notice any warning sign, do not wait for the next day’s appointment or the next blood report. Go to the nearest emergency department.
How dengue is treated in hospital
There is no specific antiviral medicine for dengue. Treatment is supportive, and the aim is to keep the body well hydrated and watch for complications.
- Fluids: Oral fluids are encouraged when the patient can drink. Intravenous fluids are given when the patient cannot drink enough or has warning signs, and the amount is carefully adjusted by the doctor.
- Monitoring: Regular checks of pulse, blood pressure, urine output and repeat blood counts help detect problems early.
- Fever and pain relief: Paracetamol is generally used under medical advice. Aspirin and anti-inflammatory painkillers such as ibuprofen are usually avoided in dengue because of the risk of bleeding. Always check with your doctor before giving any medicine, especially to a child.
- Specialised care: Patients with bleeding, shock or organ involvement need intensive monitoring and additional treatment decided by the treating team.
Treatment always depends on the patient’s age, condition, other illnesses and the doctor’s assessment.
What you can do at home while under medical advice
- Encourage frequent sips of safe fluids such as clean drinking water, oral rehydration solution, rice kanji, tender coconut water and soups.
- Make sure the patient rests.
- Keep a simple record of how often urine is passed and its colour. Dark or very little urine can signal dehydration.
- Keep the list of warning signs where every family member can see it.
- Keep the patient under a mosquito net, even during the day, so that more mosquitoes are not infected and the illness does not spread through the household.
Preventing dengue at home and in the community
- Empty and scrub water containers, coolers, flower pot trays, discarded tyres, coconut shells and other items that collect water, and do this regularly.
- Cover water storage tanks and drums tightly.
- Use mosquito nets, window screens and repellents, particularly for children who play outdoors in the day.
- Dress children in full-sleeved clothing during the day.
- Support your local panchayat or municipality fogging and clean-up efforts, and report stagnant water.
Dengue care at Sri Naadi Hospital, Pattukkottai
If you or your child has fever in or around Pattukkottai, you do not need to wait for it to become severe before seeking advice. Sri Naadi Hospital, a multispeciality hospital in Pattukkottai, has a general medicine department that can assess fever and advise on testing and treatment.
Next step: If you have fever with any warning sign listed above, go to the emergency department at once. For fever without warning signs, you can contact Sri Naadi Hospital to consult a doctor and get the appropriate tests done.
Frequently asked questions
Can dengue be treated at home?
Many mild cases can be managed at home with rest, fluids and regular medical follow-up, provided there are no warning signs and the patient is drinking well. Your doctor will decide whether home care is safe for you.
Is a low platelet count always dangerous in dengue?
Not always. Doctors judge risk by looking at symptoms, vital signs, hydration, bleeding and blood thickness along with the platelet trend. A falling count combined with warning signs is more worrying than a low number alone.
Does a negative NS1 test mean I do not have dengue?
Not necessarily. The test works best in the early days of illness. If symptoms continue, your doctor may repeat the test or advise antibody tests.
Why does dengue sometimes get worse after the fever goes down?
The critical stage often begins as the fever settles, when fluid can leak from blood vessels. This is why monitoring and watching for warning signs matter even if the temperature looks normal.
Can children get severe dengue?
Yes. Children can become dehydrated quickly and may not be able to describe how they feel. Parents should watch for repeated vomiting, drowsiness, severe stomach pain, bleeding, very little urine and cold hands and feet, and seek medical care at once.
Which fever medicines should I avoid in dengue?
Aspirin and anti-inflammatory painkillers like ibuprofen are generally avoided because of bleeding risk. Use only what your doctor advises.
Is papaya leaf juice a proven treatment for low platelets?
It should not be relied on as a treatment. Platelets usually recover as the illness settles, and decisions about treatment should come from your doctor.
Emergency note: This article is for general information and is not a substitute for medical advice. Dengue cannot be confirmed from symptoms alone. If you or your child has fever with any warning sign, seek emergency care immediately.