When administering with the cap. TOUCHING THE INSIDE OF THE CAP with your fingers or lips the Homeopathic remedy and alter its effectiveness. STRONG ODORS such as menthol, mint, camphor, essential oils, tiger balm, lip balm, deep heat linaments. cough lozenges, moth balls, chewing gum, aromatic toothpaste, chemical fumes, perfumes, and incense may alter the effectiveness of Homeopathic Remedies. The average medicine cabinet or purse with perfume or hairspray in it are NOT the ideal storage areas. It is best not to open the remedy bottle if you can smell anything in the surrounding environment. Read more »