Tomato flu (tomato fever) its dangers how it spreads and treatment
Tomato flu (also known as tomato fever) is one of the conditions that has recently raised concern, especially among children. Despite its strange and alarming name, it is not a real influenza infection and has nothing to do with tomatoes. Instead, it is usually a mild viral infection in most cases that appears as fever, mouth ulcers, and a skin rash on the hands and feet.The disease spreads quickly in schools and daycare centers, which often leaves parents wondering: Is it dangerous? How is it transmitted from one person to another? And what is the best way to treat it at home without panic?In this article from Deli Medical, we will explain everything about tomato flu—from its causes and modes of transmission, to its symptoms, treatment options, and prevention methods.
What is Tomato Flu (Tomato Fever)?
Tomato flu, also known as tomato fever, is a rare and contagious viral infection that mainly affects children, especially those under the age of five. It is characterized by the appearance of painful red blisters on the skin that resemble the shape of tomatoes, which is the reason behind its unusual name. Most reported cases have been recorded in certain regions, including India.
The infection can cause symptoms such as fever, fatigue, and joint pain. It has no relation to tomatoes as a food; the name only refers to the appearance of the skin rash.
How long does it take to recover from tomato flu?
Recovery from tomato flu usually takes around 5 to 7 days with proper rest and home care. In some cases, it may take up to 10 days for complete recovery. Symptoms typically improve gradually, and most patients recover without complications.
Is tomato fever contagious?
Yes, tomato flu is contagious. It spreads rapidly from person to person. The main routes of transmission include:
- Direct physical contact with an infected person
- Sharing personal items or toys
- Touching contaminated surfaces
- Crowded environments such as schools and daycare centers
Is there a link between tomato flu and COVID-19?
Although tomato flu and COVID-19 may share some general symptoms like fever and fatigue, there is no direct link between them. They are completely different diseases caused by different viruses. There is no need for confusion, but medical attention is recommended if symptoms appear.
What is the difference between tomato flu and hand, foot, and mouth disease (HFMD)?
Tomato flu can sometimes present with a skin rash that may spread beyond the limbs and mouth. So far, no deaths have been linked to it.
Hand, foot, and mouth disease (HFMD), on the other hand, typically causes blisters on the hands, feet, and inside the mouth. It is usually mild but, in very rare cases, may lead to neurological complications or severe conditions.
How to distinguish tomato flu from chickenpox?
Tomato flu:
- Blisters mainly on hands, feet, and sometimes around the mouth
- May include mouth ulcers
- Rash is more localized
Chickenpox:
- Widespread rash across the entire body
- Severe itching
- Multiple stages of blisters appearing at the same time
Tomato flu vs chickenpox
Chickenpox is a viral infection that causes widespread itchy rashes and fever. Tomato flu is another viral illness that usually causes localized rashes along with fever and mouth sores. Although both are viral skin-related diseases, chickenpox spreads more widely across the body compared to tomato flu.
Who is most at risk of tomato fever?
Tomato flu mainly affects children, especially those under five years old. It usually begins with sudden fever followed by fatigue and red rashes or blisters on the hands, feet, or around the mouth.
How serious is tomato fever?
In most cases, tomato fever is not considered dangerous. Symptoms usually resolve within 7 to 10 days without major medical intervention. Complications are rare.
Should an infected child be isolated?
Yes, isolation is strongly recommended, especially during the early stages of infection when the virus spreads most easily.
Is bathing allowed during infection?
Yes, bathing is allowed. It is recommended to use lukewarm water and avoid scrubbing or irritating the skin lesions.
Is itching severe?
Itching is usually mild or moderate. In many cases, the more uncomfortable symptom is mouth soreness due to ulcers.
Is eating difficult during infection?
Yes, eating may become difficult due to mouth ulcers. It is better to:
- Eat soft foods
- Prefer cool or lukewarm meals
- Avoid spicy or acidic foods
Is there a vaccine for tomato flu?
No, there is currently no vaccine available for tomato flu.
Causes of tomato flu
The exact cause is still not fully understood. Researchers are continuing to study the condition. It has been reported in limited regions, such as Kollam in India, with concerns about possible spread if preventive measures are not taken.
Symptoms of tomato flu
Symptoms usually develop gradually and may include:
- Red blisters or rash on the skin
- Skin irritation and itching
- Fever
- Body and muscle aches
- Dehydration
- Joint swelling
Additional possible symptoms:
- Skin discoloration on hands, knees, or buttocks
- Nausea
- Vomiting
- Abdominal pain or cramps
- Fatigue and weakness
- Runny nose or sneezing
- In rare cases: confusion or temporary neurological symptoms due to severe fatigue
Types of tomato flu (based on viruses and severity)
First: By virus type
1. Coxsackievirus A16
- Most common
- Mild symptoms
- Localized rash
- Mild to moderate fever
2. Coxsackievirus A6
- More severe symptoms
- More widespread rash
- May affect arms, legs, and face
3. Enterovirus 71 (EV71)
- Less common but potentially more serious
- Rare neurological complications
- Requires close medical monitoring
Second: By severity
Mild cases
- Low fever
- Limited rash
- Recovery within a few days
Moderate cases
- Higher fever
- Painful mouth ulcers
- Noticeable rash
Severe cases (rare)
- Persistent high fever
- Difficulty eating or drinking
- Signs of dehydration
- Severe fatigue or unusual symptoms
Diagnosis of Tomato Flu (Tomato Fever)
Tomato flu cannot usually be diagnosed through a single laboratory test. In most cases, diagnosis is based primarily on clinical examination and visible symptoms, as it is often part of a viral infection similar to hand, foot, and mouth disease.
First: Clinical diagnosis (most important)
Doctors usually diagnose the condition by:
- Observing the appearance of the skin rash (hands, feet, and sometimes the trunk)
- Checking for mouth ulcers or sores
- Noting fever and general fatigue
- Reviewing medical history and exposure to infected individuals (such as in schools or daycare centers)
In most cases, the typical symptoms are enough for diagnosis without the need for laboratory tests.
Second: Medical tests (only in specific cases)
Tests are usually not required unless the case is unclear or severe. They may include:
- Throat or stool swab to detect the virus
- PCR test to identify the exact virus type (especially in outbreaks or severe cases)
- Complete blood count (CBC) to rule out other similar conditions
Third: Differential diagnosis (very important)
Doctors must distinguish tomato flu from other similar diseases, such as:
- Chickenpox
- Skin allergies
- Measles
- Bacterial skin infections
Fourth: Signs suggesting strong suspicion
Tomato flu is suspected when:
- Fever is accompanied by rash on hands and feet
- Painful mouth ulcers are present
- Rapid spread among children in the same environment
In such cases, it is often diagnosed as hand, foot, and mouth disease, commonly referred to as tomato flu.
Risks of Tomato Flu (Tomato Fever)
In most cases, the risks are mild since it is a viral illness, but complications may occur in some situations.
First: Common risks
- Dehydration due to difficulty eating and drinking from mouth ulcers
- Fever lasting several days
- Mouth pain causing feeding difficulties
- General fatigue and weakness
Second: In young children
Children are more vulnerable to:
- Reduced fluid intake leading to dehydration
- Temporary loss of appetite
- Irritability and crying due to pain
Third: Rare complications
In very rare cases, especially with viruses like EV71, complications may include:
- Nervous system inflammation
- Seizures (very rare)
- Meningitis in severe cases
Fourth: Risk of spread
- The infection spreads quickly among children
- Outbreaks may occur in schools and daycare centers
- Infected children remain contagious during the illness
When does the condition become serious?
Medical attention is needed if:
- Persistent high fever
- Complete refusal to drink fluids
- Signs of dehydration (dry mouth, reduced urination)
- Severe lethargy or unusual behavior
Treatment of Tomato Flu (Tomato Fever) with medication
There is no specific antiviral treatment for tomato flu because it is a viral infection. Treatment focuses on relieving symptoms while the immune system clears the virus within a few days.
First: Fever reducers and pain relievers
These are the main treatments:
✔ Paracetamol
(e.g., Panadol, Cetal, Adol)
Used for:
- Reducing fever
- Relieving body pain and mouth ulcers
⚠️ Important notes:
- Dose depends on age and weight
- Usually taken every 6–8 hours as needed
- Avoid overdosing due to liver risk
✔ Ibuprofen
(e.g., Brufen)
Used for:
- Fever reduction
- Pain and inflammation relief
⚠️ Avoid in cases of:
- Severe dehydration
- Repeated vomiting
- Kidney or stomach problems
Second: Treatment of mouth ulcers
- Topical oral gels to reduce pain before eating
- Mild antiseptic mouth rinses (for older children only)
- Doctor-prescribed soothing oral solutions if needed
Third: Skin rash care
- Usually no antibiotics are required
- Calamine lotion to soothe itching
- Keeping skin clean and dry
⚠️ Avoid using steroid creams without medical advice
Fourth: Hydration (most important)
- Drink water in small frequent sips
- Use oral rehydration solution (ORS) if needed
- Consume light, non-acidic juices
Medications to avoid
❌ Antibiotics (not effective against viruses)
❌ Over-the-counter cold medications without advice
❌ Steroids without prescription
Recovery time
- Symptoms usually last 5 to 10 days
- Fever resolves first
- Mouth ulcers and rash improve gradually
How to treat tomato flu at home
Home care focuses on symptom relief and supporting recovery.
First: Reduce fever and pain
- Paracetamol (Panadol, Cetal) as needed
- Ibuprofen (Brufen) if pain or inflammation is present
- Dose must follow age and weight guidelines
⚠️ Avoid mixing medications randomly.
Second: Hydration (most important step)
- Frequent small amounts of water
- ORS for dehydration prevention
- Mild juices like apple or pear
- Avoid acidic juices like orange
Third: Relieving mouth pain
- Soft foods like yogurt, soup, and mashed foods
- Avoid spicy, salty, or acidic foods
- Use oral gels before meals (if prescribed)
Fourth: Skin rash care
- Keep skin clean and dry
- Use calamine lotion for itching
- Keep nails short to prevent scratching
- Do not burst blisters
Fifth: Rest and isolation
- Complete rest at home
- Avoid contact with others due to high contagion risk
- Do not share personal items (cups, towels, utensils)
Sixth: Hygiene and prevention
- Wash hands frequently with soap and water
- Disinfect toys and surfaces
- Change clothes daily if needed
Recovery timeline
- Fever improves within 2–3 days
- Rash fades within 7–10 days