Symptom guidance that tells you when to monitor — and when to move.

How this hub is organized

The page is laid out as an index by body system. Within each section you will see the same three response tiers BioShield AI uses across the platform: monitor at home, call telehealth or your clinician, and go to urgent care or the ER. No section names a diagnosis. Symptoms are patterns, and the point of this hub is to help you act on the pattern you are actually seeing.

If you want a personalized read, bring your situation (duration, intensity, exposure history, who lives with you) to the AI Risk Guide.

Fever and systemic symptoms

Fever is the body's response to infection, not the infection itself. Most fevers in otherwise healthy adults resolve within a few days. The useful question is not "how high" alone. It is how high, how long, how well you are functioning, and who else lives with you.

Monitor at home

• Temperature under about 102°F (38.9°C) that responds to acetaminophen or ibuprofen.
• You are staying hydrated and keeping fluids down.
• Duration is under three days and you are otherwise functioning.
• No red-flag symptoms (see below).

Call telehealth or your clinician

• Fever persists beyond three days without clear improvement.
• Fever recurs after you seemed to be recovering.
• You are pregnant, immunocompromised, over 65, or managing a chronic condition.
• A vulnerable household member is also showing symptoms.

Go to urgent care or the ER

• Temperature at or above 103°F (39.4°C) that will not come down with medication.
• Fever with stiff neck, severe headache, confusion, chest pain, or trouble breathing.
• Any fever in an infant under three months.
• Dehydration signs: very little urination, dizziness on standing, dry mouth, lethargy.

Respiratory: cough, congestion, shortness of breath

Most post-viral coughs linger two to four weeks after you otherwise feel better. A cough alone is rarely an emergency. What matters is what travels with it. Shortness of breath, on the other hand, is the symptom this hub treats most conservatively.

Cough and congestion: monitor at home

• Mild to moderate cough, productive or dry, with no breathing distress.
• No shortness of breath at rest or during normal walking.
• Symptoms have lasted under two weeks and are gradually improving.

Cough: call telehealth

• Cough has lasted more than two weeks with no improvement.
• Thick yellow or green mucus with fever, facial pain, or sinus pressure.
• You have asthma or COPD and your symptoms are flaring beyond your usual baseline.

Shortness of breath: act fast

• ER now for shortness of breath with chest pain, blue lips, confusion, one-sided leg swelling, coughing up blood, or breathlessness after a long flight, recent surgery, or extended immobility.
• Urgent care same day for new shortness of breath with cough, fever, or mild but real chest tightness.
• Telehealth same day for an asthma or COPD flare without red flags, or breathlessness only on strong exertion in an otherwise well person.

Throat and ENT

Most sore throats are viral and resolve with rest and fluids. Strep throat is more likely when fever, white patches on the tonsils, swollen front-of-neck glands, and an absence of cough show up together. The patterns that change the picture have less to do with how raw your throat feels and more to do with how well you can swallow and breathe.

• Monitor: mild to moderate sore throat, manageable fatigue, settling within a week.
• Telehealth: severe one-sided throat pain, inability to swallow fluids comfortably, suspected strep, ear pain that lingers more than two days, or unusually severe fatigue.
• Urgent care or ER: trouble breathing, drooling, severe difficulty swallowing saliva, muffled "hot potato" voice, or major neck swelling.

Stomach, GI, and dehydration

Most viral stomach bugs resolve in 24 to 72 hours. The single safety signal worth tracking is hydration, not how often someone is throwing up.

Hydration red flags

• Very little or no urination for eight or more hours, or very dark urine.
• Dizziness, lightheadedness, or a racing heart on standing.
• Dry mouth, no tears in a child, sunken eyes.
• Lethargy, confusion, or unusual weakness.

Go to urgent care or the ER

• You cannot keep sips of fluid down for more than 12 hours.
• Blood in vomit or stool (bright red, black, or tar-like).
• Severe abdominal pain, especially fixed in the lower right abdomen.
• Symptoms lasting beyond 72 hours with no improvement.
• Anyone very young, very old, pregnant, or immunocompromised with sustained symptoms.

Headache and neurological symptoms

Routine tension headaches and migraines are common and rarely emergencies. They usually track with whatever viral process is happening and ease alongside the fever. A small set of patterns should always trigger fast escalation.

• "Worst headache of my life," especially sudden, thunderclap onset.
• Headache with stiff neck, high fever, rash that does not blanch when pressed, confusion, or a seizure.
• New headache after a head injury.
• New neurological signs: vision changes, weakness, slurred speech, numbness on one side.

Skin and rashes

Most adult rashes are not emergencies. The exceptions are the ones worth knowing cold. Get emergency evaluation for a rash that does not fade when pressed, a rash that appears with fever and severe systemic illness, a rash after a new medication accompanied by throat tightness or trouble breathing, or a rash that is spreading rapidly with skin pain or peeling. For everything else (single hives, mild contact dermatitis, post-viral rashes that itch but otherwise behave), monitor at home and call telehealth if it is not improving in a few days.

Loss of taste or smell

Loss of taste and smell can follow many viral infections, not only COVID-19. It usually recovers gradually over weeks. If this is your primary symptom and you feel otherwise well, the usual move is to monitor and consider testing when exposure risk is relevant. Escalate the same way as for any infection if shortness of breath, chest pain, or severe headache shows up alongside it.

How to call a clinician efficiently

You will get better care from any tier (telehealth, urgent care, ER) if you bring structured information. The chat asks for most of this anyway, so jot it down before you dial.

• Exact symptoms, when they started, and whether they are improving, steady, or worsening.
• Highest measured temperature and how it responds to fever-reducing medication.
• Known or suspected exposures: household, work, school, recent travel.
• Relevant vaccination status.
• Full medication list, including over-the-counter products and supplements.
• Existing conditions, pregnancy status, and allergies.
• Red-flag symptoms you have specifically ruled in or out.
• Your one most important question, written in a single sentence.

Educational guidance, not medical advice. See our Medical Disclaimer. For anything severe, worsening, or unusual for you, lean toward escalation rather than delay.