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Cold, Flu or COVID? A Chart to Decide What to Do - Artículo de salud Clínica Hispana Nueva Salud Lawndale Houston TX
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Cold, Flu or COVID? A Chart to Decide What to Do

Compare a cold, the flu and COVID sign by sign, then decide whether to rest at home, get a rapid test or go to the ER. A guide for Houston's East End.

7 min readBy Medical Team, Clínica Hispana Nueva Salud Lawndale

In the first day or two, all three can feel almost identical: a stuffy nose, a scratchy throat, a bit of a cough and the urge to stay in bed. Yet what you should do next is not the same for each one. A cold is almost always handled at home; the flu (influenza) has an antiviral treatment that works best when started early; and COVID-19 may call for different care if you are in a higher-risk group.

That is why we put together this practical guide. It does not replace a visit, but it can help you sort out what you are feeling and pick your next step with a clearer head. The clinic's medical team wrote it with families in Lawndale, Eastwood, Magnolia Park and the rest of the East End in mind, where respiratory virus season is busiest roughly from October through March.

The chart: how each one usually shows up

Read across each row and note which description matches you. These are typical patterns, not hard rules, and everyone reacts a little differently.

SignCommon coldFlu (influenza)COVID-19
How it startsSlowly, over a day or twoSuddenly, sometimes within hoursCan be gradual or fast
FeverRare or low-gradeCommon and often highCommon, low to high
Body achesMildStrong, with chillsMild to strong
TirednessSlightVery heavy, hard to get upCan be heavy and linger
Stuffy or runny noseVery commonSometimesSometimes
SneezingVery commonUncommonUncommon
Sore throatCommonSometimesCommon
CoughMild to moderateFrequent, often dryFrequent, often dry
Loss of smell or tasteVery rareVery rarePossible, though less common now
Shortness of breathVery rarePossible in severe casesPossible, and a reason to get checked
What confirms itOnly how it plays outRapid flu testRapid COVID test

Three ways to read your results

After going through the chart, most people land in one of these three patterns.

Lots of sneezing, a runny nose and little or no fever. A cold is the most likely answer. It usually clears up on its own in about a week, sometimes a little longer. Rest, fluids and over-the-counter medicine for the discomfort are usually enough. If your eyes also itch and this happens every time the weather turns, it may be seasonal allergies, which aren't contagious and are managed differently.

A fever that hit out of nowhere, body aches and exhaustion that keeps you off work. That picture points to the flu, although COVID can look exactly the same. This is when testing early pays off, because the flu antiviral works best when it is started within the first two days of symptoms.

A dry cough, an irritated throat, fatigue and maybe changes in smell or taste. It could be COVID, but it could also be the flu. Only a test settles it, and knowing helps you decide how long to keep your distance from others and whether someone at home needs extra protection.

What to do, case by case

Once you have a rough idea of what it might be, use this list to choose the next step.

You can likely recover at home if…

  • Your symptoms are mild and getting a little better each day.
  • You have no high fever and no trouble breathing.
  • You are not in a higher-risk group (pregnancy, older age, diabetes, asthma, heart disease or a weakened immune system).

Coming in to the clinic makes sense if…

  • Your fever started suddenly and you want to know if it is influenza while the antiviral can still help.
  • You are in a higher-risk group, even if you feel only moderately sick.
  • Your cough is hanging on longer than expected, you hear wheezing, or you got worse after starting to feel better.
  • You need a note for work or school.

At our flu, COVID and respiratory illness service we check your vital signs and oxygen level, examine your throat, ears, nose and lungs, and run the rapid test with a nasal swab. The influenza A/B and COVID-19 result comes back in minutes, so you leave knowing what you have and with clear instructions to keep it from spreading at home.

Warning signs that mean ER or 911

  • You are struggling to breathe or get winded just talking.
  • You have chest pain or pressure.
  • Your lips or face look bluish or purple.
  • There is confusion, unusual drowsiness or trouble waking up.
  • You are coughing up blood.
  • A baby younger than 3 months has a fever.

These warning signs are not a reason to wait in line at any clinic: they need emergency care.

Why it helps to know which virus it is

Some patients ask us, "If it's a virus anyway, why bother testing?" There are three good reasons.

  1. Treatment differs. Influenza has an antiviral (oseltamivir) that can shorten the illness when it is started in time. For COVID-19, people at higher risk can also receive an antiviral early in the illness. A cold has no antiviral; care focuses on the symptoms.
  2. Antibiotics don't work on these viruses. Knowing it is viral spares you from taking antibiotics that won't help and can cause side effects. We prescribe them only when a bacterial infection is confirmed or very likely.
  3. It protects your household. Once you know it is flu or COVID, you can take specific steps around grandparents, a baby or a family member with diabetes who lives with you.

What the chart can't tell you

No chart can reliably tell one virus from another: flu and COVID share nearly all their symptoms, and a person can have both infections at the same time. It also can't pick out strep throat, which tends to cause severe pain when swallowing, fever and white patches on the tonsils, usually without a cough or runny nose. If that sounds like you, read about our rapid strep test, which also gives a result in minutes and does call for antibiotics when it comes back positive.

Finally, people living with diabetes, high blood pressure or another long-term condition are more prone to complications. If you are followed through our chronic conditions program, mention it when you check in.

While you recover at home

Whatever the virus, these general steps help most people:

  • Rest, and sip water, broth or an oral rehydration drink throughout the day.
  • Take over-the-counter fever and pain relievers as the label directs; for children, dose by weight.
  • Cough and sneeze into your elbow and wash your hands often.
  • Wear a mask if you have to be around other people.
  • Ease back into work, school or the gym when the worst has clearly passed and a whole day has gone by with a normal temperature and no Tylenol or ibuprofen masking it.

One step for next time

The flu vaccine is the best tool for making the next bout of flu milder or keeping it away altogether. It is recommended every year, ideally before the season peaks, and protection takes about two weeks to build. We give it without an appointment to adults and children through our vaccines service.

We're here for you in Lawndale

If you still have questions after going through the chart, stop by Clínica Hispana Nueva Salud Lawndale in the 77023 ZIP code, between Eastwood and Magnolia Park. We are open Monday through Sunday from 9 AM to 9 PM, we speak Spanish and English, and you don't need insurance: it is self-pay, and you can ask the price of a visit with a flu and COVID test by phone or WhatsApp before you leave home. To see everything the visit covers, check our respiratory illness page.

Need medical attention?

We're here to help. Call now to schedule your appointment or visit our clinic without an appointment.

Call now: (832) 530-4188