ContinuEM doctor evaluating a patient with food poisoning in Lakewood

CONDITIONS

Food Poisoning Treatment

Something you ate is fighting back, and you don’t have to ride it out alone. Our ER-trained doctors in Lakewood evaluate food poisoning with on-site labs and treat it with anti-nausea medication and IV fluids when you need them. No appointment needed.

What Is Food Poisoning?

Food poisoning (foodborne illness) is your body reacting to contaminated food or drink: bacteria, viruses, or the toxins they leave behind. Symptoms usually start within hours to a couple of days of eating, and most cases resolve on their own within 1–3 days. The main job while you’re sick is staying hydrated. That’s also the part that most often goes wrong.

ContinuEM provider reviewing food poisoning symptoms with a patient

What Causes Food Poisoning?

  • Bacteria: Salmonella (undercooked poultry, eggs), E. coli (undercooked beef, raw produce), Campylobacter (raw poultry), Listeria (deli meats, soft cheeses), Staphylococcus aureus toxin (food left out too long)
  • Viruses: norovirus, the “stomach flu” that spreads through food handlers and shared dishes
  • Parasites: Giardia and Cyclospora, often from contaminated water or produce
  • Summer culprits: BBQ food sitting in the sun, undercooked grilled meats, potato salad past its window, and travel-related “Traveler’s diarrhea”

Urgent Care or ER? Know the Difference

Most food poisoning can be evaluated and treated right here, faster and at a fraction of the cost of an ER.

Come to ContinuEM if you have:

  • Vomiting or diarrhea lasting more than 24–48 hours
  • Trouble keeping fluids down, or signs of dehydration like dark urine, dizziness, or dry mouth
  • Fever above 101°F with stomach symptoms
  • Severe cramping or abdominal pain
  • Recent travel abroad followed by GI illness
  • Symptoms after eating undercooked meat, seafood, or food left out too long

Call 911 or go to the ER if you have:

  • Blood in your vomit, or black, tar-like stools
  • Signs of severe dehydration, such as confusion, fainting, no urination, or rapid heartbeat
  • Blurred or double vision, muscle weakness, or trouble swallowing (possible botulism)
  • A rigid, severely tender abdomen
  • High fever that won’t come down
  • Severe symptoms during pregnancy, or in an infant, elderly, or immunocompromised person

Not sure? Call us at (562) 731-3990. We’ll help you decide.

Symptoms We Ask About

Food poisoning usually announces itself with some combination of: nausea and vomiting, watery or bloody diarrhea, stomach cramps, fever and chills, headache, and weakness. Two questions help us narrow the cause: what did you eat, and how long before symptoms started? Toxin-type illness (like staph) hits within hours; bacteria like Salmonella take 6 hours to 6 days; some, like Listeria, can take weeks.

ContinuEM provider taking a patient’s history after a suspected foodborne illness

What Causes Food Poisoning?

  1. Bacteria: Salmonella (undercooked poultry, eggs), E. coli (undercooked beef, raw produce), Campylobacter (raw poultry), Listeria (deli meats, soft cheeses), Staphylococcus aureus toxin (food left out too long)

  2. Viruses: norovirus, the “stomach flu” that spreads through food handlers and shared dishes

  3. Parasites: Giardia and Cyclospora, often from contaminated water or produce

  4. Summer culprits: BBQ food sitting in the sun, undercooked grilled meats, potato salad past its window, and travel-related “Traveler’s diarrhea”

How We Diagnose Food Poisoning

  1. We listen.

  2. We examine.

  3. We test on site when needed.

We ask what you ate and when symptoms started, check your hydration and vitals, and run blood work, urinalysis, and stool studies when symptoms are severe, bloody, or prolonged.

How We Treat It

Most patients leave the same visit feeling noticeably better:

  • IV fluids: restore fluids and electrolytes fast when you can’t keep liquids down

  • Anti-nausea medication: so you can rest, and drink, again

  • Antibiotics, only when they help: most food poisoning is viral or self-limiting; when a bacterial cause warrants treatment, we prescribe it

  • Clear aftercare: what to eat (bland, small, slow), what to avoid, and the warning signs that mean come back

Why Choose ContinuEM for Food Poisoning

ER-trained, board-certified providers

On-site labs and IV fluids, so you’re evaluated, tested, and rehydrated in one visit

Walk-ins welcome; open until 11 PM weekdays, 6 PM weekends

$99 upfront fee; most insurance accepted

Faster and far cheaper than the ER for non-emergency GI illness

Conveniently located in Lakewood, CA, serving Long Beach, Downey, Cerritos, Bellflower, Paramount, Signal Hill, Norwalk, Naples, Belmont Shore, Huntington Beach, Seal Beach, Buena Park, Cypress, Los Alamitos, Rossmoor, and West Garden Grove.

Related Care at ContinuEM

One visit usually covers whatever the bad meal left behind:

ContinuEM Urgent Care in Lakewood
ContinuEM doctor discussing food poisoning care with a patient

FAQ

Food Poisoning FAQs

Yes, if symptoms last more than 24–48 hours, you can’t keep fluids down, you have a fever over 101°F, or you’re showing signs of dehydration. Go to the ER for bloody vomit, black stools, confusion, or vision and swallowing problems.

More than you can do at home: anti-nausea medication, IV fluids for dehydration, on-site labs and stool testing, and antibiotics when a bacterial cause actually calls for them.

Most cases resolve within 1–3 days. If you’re still sick after 48 hours, or getting worse instead of better, it’s time to be seen.

Yes. If vomiting or diarrhea has left you dehydrated, IV fluids restore hydration and electrolytes far faster than sipping can, and with anti-nausea medication on board, you keep the progress.

Sometimes you can’t; the symptoms overlap. Clues pointing to food poisoning: symptoms within hours of a specific meal, and others who ate the same thing getting sick too. Either way, the treatment path (fluids, rest, medical care if it persists) is the same, and we treat both.

FAX

(562) 461-0082

HOURS & APPOINTMENTS

Monday – Friday
8 AM – 11 PM (last check-in at 10 PM)

Saturday & Sunday
10 AM – 6 PM (last check-in at 5 PM)

Times may vary. See Holiday Hours.

COVERAGE

We’ve Got You Covered

Most in-network and out-of-network insurance accepted. You pay a $99 upfront service fee; the rest is billed to your insurance.

*Exclusions apply for insurance plans without urgent care benefits — see cash payment options.

  • Aetna
  • Alignment Healthcare
  • Anthem
  • Blue Shield of California
  • Brand New Day
  • CareMore Health
  • Cigna
  • Health Net
  • ILWU Local 13
  • Kaiser Permanente
  • Medicare Advantage
  • Medicare
  • Optum
  • SCAN Health Plan
  • United Healthcare
Giancarlo DiMassa, MD

Medically reviewed by

Giancarlo DiMassa, MD

Written by

ContinuEM Editorial Team

Last updated

July 28, 2026

ContinuEM Urgent Care is dedicated to delivering exceptional, convenient healthcare to the Lakewood community and its surrounding areas. Our board-certified providers deliver expert care with compassion, transparency, and respect for your time.

Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider for any questions regarding a medical condition. If you’re experiencing a medical emergency, call 911 immediately.

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