Garlic is also an excellent repellent thanks to its strong odor. Prepare a decoction by roughly chopping 5 cloves of garlic and boiling them in 2.5 liters of water. After cooling, filter the liquid and spray it on windowsills and doors to keep flies away.
Other formidable tips:
In addition to these tips, keep in mind that maintaining a clean home is the best way to protect yourself from flies, as they are attracted to decaying organic matter and sugary foods. So be sure to maintain impeccable cleanliness and keep food safe.
An unusual but effective tip is to hang a transparent plastic bag filled with water on the edge of the window high up. Flies perceive the bag as a spider web due to the structure of their eyes, which automatically drives them away. In addition, light reflections from the bag