Bring the water to a boil.
Add the ginger (and cinnamon, turmeric, thyme, or garlic if using). Reduce heat and simmer 5-10 minutes (longer for stronger ginger flavor).
Remove from heat. Stir in lemon juice.
Let cool to a drinkable temperature (warm, not scalding), then stir in honey.
Strain if desired and sip slowly. Breathe the steam while drinking for extra sinus relief.
Drink 2-3 cups throughout the day as needed.