Dengue Fever Supportive Care: Home and Hospital Management

Evidence-Based Supportive Treatment for Mild–Moderate Dengue

No specific antiviral exists for dengue. Management focuses on fluid balance, symptom control, and monitoring for warning signs of severe dengue (plasma leakage, hemorrhage, organ impairment).

Outpatient Management (Mild Dengue, No Warning Signs)

• Hydration: Oral rehydration solution (ORS) or clean water, coconut water, clear soups — target 2.5–3 L/day adults. Monitor urine output (≥0.5 mL/kg/hr).
• Analgesia/antipyretic: Paracetamol (acetaminophen) only — 500–1000 mg q6h (max 4 g/day). Avoid NSAIDs (ibuprofen, aspirin, naproxen, diclofenac) — increase bleeding risk, gastritis, renal impairment.
• Rest: Bed rest during febrile phase.
• Daily monitoring: Temperature, fluid intake/output, bleeding signs (petechiae, gum bleed, melena), warning signs (see below).
• Follow-up: Daily CBC (Hct, platelets) days 3–7 (critical phase).

Inpatient Management (Warning Signs or Comorbidities)

Warning signs (WHO 2009/2022): Abdominal pain/tenderness, persistent vomiting, clinical fluid accumulation (ascites, pleural effusion), mucosal bleeding, lethargy/restlessness, liver enlargement >2 cm, Hct rise with rapid platelet drop.

• IV fluid therapy: Isotonic crystalloids (RL, NS). Bolus 10–20 mL/kg over 1 hr if shock; then maintenance + replacement per Hct trend. Avoid overload — monitor for pulmonary edema.
• Blood products: Platelet transfusion only if active bleeding + platelets <10–20k, or <50k before invasive procedure. Fresh frozen plasma for coagulopathy. PRBC for significant hemorrhage.
• Monitoring: Vital signs q1–4h, strict I/O, Hct q4–6h, platelets daily, urine output, mental status.
• Organ support: Vasopressors (norepinephrine) for refractory shock; renal replacement if AKI; mechanical ventilation if respiratory failure.

Critical Phase Timeline

Fever days 1–3 → Critical phase days 4–7 (defervescence = highest leakage risk) → Recovery days 7–10 (reabsorption, diuresis).

Discharge Criteria

• Adequate oral intake, stable vitals, no warning signs 24 hrs
• Declining Hct, rising platelets, improving organ function
• Follow-up in 48 hrs for repeat CBC

Prevention

• Mosquito control: eliminate standing water, screens, repellents (DEET, picaridin, IR3535)
• Vaccine: Dengvaxia (CYD-TDV) — only for seropositive individuals 9–45 in endemic areas; Qdenga (TAK-003) approved in some countries regardless of serostatus.

Early recognition of warning signs and timely IV fluids save lives. Most deaths occur from delayed presentation or fluid overload.