This is something I am asked every day in my practice. Homeopathic Remedies should be kept in a dry, dark, cool place away from sunlight and strong odors. As they are energetic, they are sensitive to radiation, particularly mobile phones, microwave ovens, and other household appliances.
If you find that your remedies are not working consistently, it may be because radiation has canceled out their healing properties. It is also best to keep them away from odors such as coffee, essential oils, camphor, and anything minty, such as peppermint, chewing gum, and toothpaste.
When taking your remedies, take them half an hour away from mints, cleaning your teeth, and coffee. You will get the best results this way.