With some honey and a fresh garlic bulb you can make Garlic Syrup to relieve bronchitis, sore throat, hoarseness, coughs and lung infections.
You need: 6-8 cloves of fresh garlic, 8 tablespoons of honey, a jar
Peel and chop the fresh garlic. Place the chopped garlic in a jar. Cover it with the honey. Let it stand for several days, and then strain.
The garlic-infused honey can be given by the teaspoonful (1 for children, 4 for adults) to boost the immune system and treat infections.
Tip: Reduce the smell of garlic on the breath by eating an apple, drinking a little fresh lemon juice, or eating fresh parsley.
Wonderful Herbs 
please how long could last this garlic syrup
There is no recommended time limit for the syrup. Honey is antibacterial and so is garlic. Make sure you store the syrup in a tight container in the refridgerator. Use as needed and make sure you use a fresh clean spoon each time. When in doubt throw it out and make it fresh.