Virtual ER · 24/7 Emergency Telemedicine & Virtual Urgent Care

24/7 Online Nausea, Vomiting, Diarrhea & Acid Reflux Treatment.

Stomach symptoms can leave you wondering whether to rest, change your plans or get checked. A video visit gives you a chance to explain what is happening and discuss what kind of care makes sense.

Video visits · Open 24/7 · Board-certified MDs & NPs · Backed by Bellaire ER

For chest pain, severe shortness of breath, stroke symptoms, or major bleeding, call 911 or go to the nearest emergency room.

Clinical symptoms evaluated on video, prescription & treatment protocol, and in-person ER escalation guidance for 24/7 Online Nausea, Vomiting, Diarrhea & Acid Reflux Treatment.
Specific PresentationSymptoms Evaluated on VideoVideo Treatment & Local E-Prescribing Protocol
Acute Nausea, Vomiting & Zofran (Ondansetron) CareInability to keep liquids down, waves of nausea, post-meal vomitingDissolving ondansetron (Zofran ODT) or promethazine e-Rx + oral rehydration protocol
Viral Gastroenteritis ("Stomach Flu") & Acute DiarrheaWatery diarrhea, abdominal cramping, low-grade fever, nauseaHydration & electrolyte assessment + anti-emetic and gut-motility guidance
Foodborne Illness (Food Poisoning) & Traveler’s DiarrheaSudden GI distress after restaurant/travel meal, frequent loose stools, crampingRed-flag screening (fever/blood) + targeted antibiotic or anti-nausea e-Rx
Acute Acid Reflux, GERD, Heartburn & GastritisBurning epigastric pain, sour taste, nighttime reflux, stomach lining irritationCardiac red-flag exclusion + proton pump inhibitor (omeprazole/pantoprazole) or sucralfate e-Rx
Acute Constipation, Bloating & IBS Cramping FlaresAbdominal bloating, infrequent stooling, lower abdominal cramping spasmsObstruction red-flag check + osmotic regimen or antispasmodic (dicyclomine / Bentyl) e-Rx
External Hemorrhoids & Anal Fissure DiscomfortRectal itching, swelling, pain with sitting or bowel movements, bright red tissue irritationPrescription hydrocortisone 2.5% cream/suppository e-Rx + stool-softening protocol
Dehydration Screening & Bellaire ER IV Fluid CoordinationDry mouth, dizziness on standing, dark urine, persistent fluid lossVideo orthostatic & hydration check + direct fast-track referral to Bellaire ER for IV fluids when needed

What to tell us about your symptoms

Nausea, vomiting, diarrhea and cramps can occur with a stomach bug, but they are not specific to one cause. Severe or unusual abdominal pain deserves particular attention.

What the video visit can help with

Explain when symptoms started, how often they are happening and whether you can keep fluids down. Mention recent medicines, travel, pregnancy and any blood in vomit or stool. Be clear about where pain is located and whether it is getting worse.

When an examination or testing may be needed

A camera cannot replace an abdominal examination. Your clinician may recommend hands-on assessment or testing rather than try to settle the cause remotely.

Discussing treatment

For a concern suitable for video, the discussion may cover hydration, symptom management and whether medication is appropriate. You should leave knowing when to seek further care, not just with a guess about the cause.

When to get care in person

Seek prompt in-person care for severe abdominal pain, blood or black stool, frequent vomiting, or signs of dehydration such as very little urination or faintness. Serious illness or loss of consciousness requires emergency help.

Before your visit

Have a rough count of vomiting or diarrhea episodes and the last time you kept fluids down. A clear account is more useful than arriving with a self-diagnosis.

Verified Clinical Team · Backed by Our 24/7 Physical Emergency Room

Meet the Physicians & Nurse Practitioners Behind Your Care

Every video visit is conducted by our licensed physicians, physician assistants, and emergency nurse practitioners from Bellaire ER — combining 24/7 telemedicine convenience with the clinical depth of a real emergency department.

  • Dr. Mario Quintanilla, MD — Chief Medical Director · Emergency Medicine Physician
    Dr. Mario Quintanilla, MDChief Medical Director · Emergency Medicine PhysicianRice University & UTMB · Chief Medical Director, Bellaire ER
  • Dr. John K. Weinberg, MD — Emergency Medicine Physician
    Dr. John K. Weinberg, MDEmergency Medicine PhysicianCornell University & Montefiore Medical Center
  • Dr. Michelle Hong Chan, MD, PharmD, MPH — Emergency Medicine Physician
    Dr. Michelle Hong Chan, MD, PharmD, MPHEmergency Medicine PhysicianBaylor College of Medicine Chief Resident & UTHealth Houston
  • Dr. Anthony Hoang Phi, MD — Internal & Emergency Medicine Physician
    Dr. Anthony Hoang Phi, MDInternal & Emergency Medicine Physician25+ Years Clinical Practice · UTHealth Houston Residency
  • Dr. Syed Navaid Zaidi, MD — Family & Geriatric Medicine Physician
    Dr. Syed Navaid Zaidi, MDFamily & Geriatric Medicine PhysicianFamily Healthcare & Geriatric Acute Care
  • Dr. Thuy-Khanh Ha Bui, DO — Family Medicine Physician
    Dr. Thuy-Khanh Ha Bui, DOFamily Medicine PhysicianKirksville College of Osteopathic Medicine & Hermann Hospital
  • Erika Navarro, APRN, ENP-C — Family & Emergency Nurse Practitioner
    Erika Navarro, APRN, ENP-CFamily & Emergency Nurse PractitionerBilingual (English & Spanish) · Emergency & Trauma Care
  • Margaret Witt, MSN, APRN — Urgent Care & Telehealth Nurse Practitioner
    Margaret Witt, MSN, APRNUrgent Care & Telehealth Nurse PractitionerTexas & Louisiana Telehealth · UT Arlington MSN

Backed by Our Brick-and-Mortar 24/7 Emergency Room & CT Imaging Suite

Unlike app-only telehealth directories, Virtual ER is operated by our licensed 24/7 freestanding emergency center at 5306 Bellaire Blvd, Bellaire, TX 77401 — equipped with on-site CT, digital X-ray, ultrasound, and STAT laboratory suites.

Meet all 15 physicians & nurse practitioners on our team →
Bellaire ER 24/7 physical emergency center exterior at 5306 Bellaire Blvd
24/7 Emergency Center · Bellaire, TX
On-site CT scanner and advanced diagnostic imaging suite at Bellaire ER
On-Site CT & Advanced Imaging Suite
Private emergency examination room at Bellaire ER
Private Emergency Exam Suites

Questions about this care

Is every stomach bug “the flu”?

No. The phrase “stomach flu” usually refers to gastroenteritis, which is different from influenza. Other conditions can also cause digestive symptoms.

Your next step

Let’s talk about getting you care.

Start with a video visit. Your clinician can help you understand what can be addressed online and what needs care in person.

Sources and service information

Dr. Mario Quintanilla, MD
Medically reviewed byDr. Mario Quintanilla, MDChief Medical Director, Bellaire ER · Rice University & UTMBLast reviewed: October 2026

Viral gastroenteritis symptoms and causes

Virtual ER public service overview

Information updated October 3, 2026. General information does not replace your own clinical evaluation.