Begin by pouring the water into a small pot and placing it on medium heat. Once it reaches a boil, add the ginger and black pepper.
Boil this mixture for 3 minutes, then let it cool until it reaches a comfortable temperature.
Add honey to taste to sweeten the mixture.
Consume this drink as needed.
Recommended Usage:

Ideally, aim to drink 3 to 4 cups of this solution daily to help relieve congestion and cough. However, for milder symptoms, one cup on an empty stomach may suffice to alleviate mucus-related issues.
Additionally, for addressing colds and flu, we have a potent natural remedy:

Ingredients:

Freshly chopped or crushed garlic.
Freshly chopped onion.
Grated fresh ginger root.
Grated fresh horseradish.
Fresh cayenne pepper (seeded), thinly sliced or chopped.
Preparation and Usage:

Combine all these ingredients in a blender and blend until you achieve a smooth, lump-free mixture.
Transfer this blend into an airtight glass jar and store it for two weeks. During this period, gently shake the jar once a day (1 jar per day).
After the two-week period, strain the mixture, retaining only the liquid.