Treating allergies can involve different medications, including steroids and allergy shots, but usually the first thing to try is an antihistamine.
Ivory is made from the tusks and teeth of elephants, whales and other animals. It is highly valuable, in part because it is now illegal to procure ivory from some sources, such as elephants.vory is made from the tusks and teeth of elephants, whales and other animals. It is highly valuable, in part because it is now illegal to procure ivory from some sources, such as elephants.
Most instruments built before about 1960 had real ivory key tops. Keep in mind that an actual key itself is made of wood, and only the thin covering on top is made of ivory (or plastic in new pianos). Ivory can always be identified by the hairline separation between the head and the tail of the key.