Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallHow do I know if I have COVID-19, the flu, or just a cold? Symptoms can offer clues, but they cannot reliably tell you whether you have COVID-19 or flu; colds overlap too. A test is needed to confirm COVID-19 or flu. If you are at higher risk of severe illness, contact a healthcare provider promptly rather than waiting for symptoms to make the diagnosis clear.
Can symptoms tell COVID-19, flu, and a cold apart?
No. COVID-19 and flu share many symptoms, including fever or chills, cough, shortness of breath, fatigue, sore throat, a runny or stuffy nose, aches, headache, vomiting, and diarrhea. The CDC says symptoms alone cannot distinguish flu from COVID-19: many of their signs and symptoms are the same.
A cold often causes milder symptoms, especially a runny or stuffy nose, while flu more often starts abruptly and feels more intense. Those are tendencies, not diagnostic rules. COVID-19 can range from mild to severe, and cold and flu symptoms overlap. Even a symptom pattern that seems typical of one illness cannot confirm it.
How the usual symptom patterns compare
| Pattern | Common cold | Flu | COVID-19 |
|---|---|---|---|
| Onset | Usually gradual. | Often abrupt. | Symptoms overlap with flu; timing alone cannot confirm COVID-19. |
| Typical intensity | Usually milder than flu. | Often more intense than a cold. | Can range from mild to severe. |
| Nose symptoms | Runny or stuffy nose is common. | Can occur, but is less prominent in the CDC comparison. | Runny or stuffy nose can occur. |
| Fever, chills, aches, and fatigue | Fever and aches are less typical; symptoms are often mild. | Fever or chills, body aches, and fatigue are more common. | These symptoms can also occur, so they do not separate it reliably from flu. |
| Change in taste or smell | Not a reliable way to distinguish a cold in this comparison. | Can occur. | More frequent than with flu, but not a dependable stand-alone test. |
The CDC’s cold-versus-flu comparison describes these general patterns. Use them to understand what may be more typical, not to score symptoms or self-diagnose.
Recommended Free Tools
#1 Best Overall
- FDA Authorized 15-Minute Flu A&B, COVID Test Kit: Over-the-counter flu and COVID test for home use with rapid results in just 15 minutes.
- Made for Ages 2 and Above; Parents Can Stop Guessing: Quickly identify whether you or your kids are dealing with coronavirus or influenza A & B. Adult-collection is required for those aged 2-13 years, and self-collection by individuals aged 14 years and older.
- Same Ease-of-Use; Get 3 Results in 1 Test: Utilizing the familiar 4 user-friendly steps of at-home COVID tests, you can now get all 3 results for COVID-19 and Flu A & B at once with 5 drops of sample.
- Fast and Convenient COVID and Flu Tests for Home: Use this COVID and influenza rapid test kit in the comfort of your home. Bypass the need for a doctor's visit and protect your loved ones from potential exposure to contagious illnesses at school, work, or public gatherings.
- Compact Design for On-the-Go Testing: Stay safe wherever you go with our COVID-19, Flu A & B 3-in-1 self-test. Its compact design ensures easy storage and convenient portability for your travel bag.
When and how to test
Testing is useful when knowing the cause could affect treatment or how you reduce the chance of spreading illness. Some FDA-approved rapid tests for home use detect both influenza A and B and SARS-CoV-2. A combination test can help check for both flu and COVID-19, but a rapid result has limitations.
- COVID-19: A viral test can identify current SARS-CoV-2 infection. NAATs, including PCR tests, are more likely to detect the virus than antigen tests. A negative antigen result does not rule out COVID-19; follow the FDA’s current instructions for whether and when to test again. See the CDC’s COVID-19 testing guidance.
- Flu: Rapid flu antigen tests can provide results quickly, but may be less accurate than other flu tests. A negative rapid result does not necessarily mean you do not have flu. The CDC describes testing methods and rapid-test limitations.
- Both viruses: Molecular testing may be recommended for symptomatic people suspected of having flu, COVID-19, or both when results can support timely treatment decisions. The CDC’s respiratory-virus testing guidance explains the role of testing.
Home-test availability and labeling can change. Check the current instructions for the specific test you use, including which viruses it detects and what to do after a negative result. A negative rapid test should not be treated as proof that you are uninfected when symptoms or exposure still raise concern.
Rank #2
- COMBO TEST KIT: Includes 2 at-home COVID and flu rapid tests designed to detect active infection.
- TRUSTED TECHNOLOGY: Utilizes the same technology doctors use to test for COVID and the flu.
- TEST EASIER, REST EASIER: Detects multiple COVID-19 variants and flu strains A&B. A computational analysis of the detection of multiple SARS-COV-2 strains, Influenza A and Influenza B and predicts no impact in performance of BinaxNOW COVID-19/Flu A&B Combo Self Test.
- FAST, RELIABLE RESULTS: FDA-cleared 15-minute self-test for COVID and flu provides fast, reliable results anytime, anywhere. No need for a prescription or sending to a lab.
- EASY TO USE: Requires a simple, shallow nasal swab. Easy-to-follow instructions included.
If you are at higher risk, contact a clinician early
If you may be at increased risk of severe illness and suspect COVID-19 or flu, contact a healthcare provider promptly. Antiviral treatment works best when started soon after symptoms begin, and the treatment windows are short. CDC guidance gives 5–7 days after symptom onset for starting COVID-19 treatment and 2 days for starting flu treatment; these are treatment-start windows, not a reason to wait until the last day. A clinician can assess your situation and whether testing or treatment is appropriate. See the CDC’s common-cold and respiratory illness treatment guidance.
When symptoms need urgent medical attention
Seek immediate medical care for difficulty breathing, persistent chest or abdominal pain or pressure, confusion, inability to wake or stay awake, or seizures. Other concerning signs include not urinating, severe muscle pain, severe weakness or unsteadiness, and a fever or cough that improves and then returns or worsens. The CDC notes that warning-sign lists are not exhaustive: seek care for any severe or worrying symptom. See its flu emergency warning signs.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- RAPID 15-MINUTE RESULTS : Get fast answers when symptoms start; the Flowflex Plus RSV + Flu A/B + COVID Home Test detects RSV, Flu A, Flu B, and COVID-19 in just 15 minutes, helping families make informed decisions quickly
- 4 TESTS IN 1: One easy test, four results; single nasal swab screens for the most common respiratory infections—no separate kits required
- CLINICALLY EVALUATED PERFORMANCE: Designed with the same high standards used in professional settings; reliable antigen testing from a trusted brand—no lab or prescription required
- FAMILY-FRIENDLY & EASY TO USE: Approved for self-testing ages 14+; for children ages 2–13, an adult can administer the simple, non-invasive nasal swab; adults can test infants aged 6 months – 23 months with an attachable swab guard provided for safe sample collection; clear step-by-step instructions included in English and Spanish
- 2-YEAR SHELF LIFE FOR PREPAREDNESS: With a 24-month expiration, this compact kit is ideal for home health drawers, classroom or workplace supplies, travel, and seasonal preparedness
What to do with an ordinary cold-like illness
Many respiratory infections begin with symptoms that are hard to identify by appearance alone. If symptoms are mild and you are not at higher risk, consider testing when the result could change what you do, and follow current test instructions. Most people with a common cold do not need specific treatment; antibiotics do not treat viral colds. If symptoms worsen or concern you, contact a healthcare provider.
Quick Recap
Best Value
- FDA Authorized 15-Minute Flu A&B, COVID Test Kit: Over-the-counter flu and COVID test for home use with rapid results in just 15 minutes.
- Made for Ages 2 and Above; Parents Can Stop Guessing: Quickly identify whether you or your kids are dealing with coronavirus or influenza A & B. Adult-collection is required for those aged 2-13 years, and self-collection by individuals aged 14 years and older.
- Same Ease-of-Use; Get 3 Results in 1 Test: Utilizing the familiar 4 user-friendly steps of at-home COVID tests, you can now get all 3 results for COVID-19 and Flu A & B at once with 5 drops of sample.
- Fast and Convenient COVID and Flu Tests for Home: Use this COVID and influenza rapid test kit in the comfort of your home. Bypass the need for a doctor's visit and protect your loved ones from potential exposure to contagious illnesses at school, work, or public gatherings.
- Compact Design for On-the-Go Testing: Stay safe wherever you go with our COVID-19, Flu A & B 3-in-1 self-test. Its compact design ensures easy storage and convenient portability for your travel bag.
Rank #4
- 3-in-1 Multiplex Detection: Detects SARS-CoV-2, Influenza A, and Influenza B antigens from a single anterior nasal swab sample.
- Designed for Symptomatic Testing: Intended for individuals experiencing symptoms of respiratory infection within the first 5 days of symptom onset.
- Simple Nasal Swab Collection: Uses a short anterior nasal swab sample with step-by-step instructions included in the kit.
- Fast Results in 10 Minutes: Provides results in approximately 10 minutes when used according to the instructions for use.
- 10 minute accuracy —why wait 15? With our rapid testing kit, get peace of mind in 10 minutes and precise results without the extra wait. Proven higher PPA than major competitors, based on IFUs.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
