Wax play has been around for years and is generally safe as long as you know what you are doing and have suitable candles on hand. Wax play falls under sensation play as it is thought to be very erotic to have your partner drip hot wax on your naked body while you wait in anticipation to feel the heat of the wax dripping on your body.
When using temperature play in your scene, you can use many different items and ingredients. If you plan on using food items or creams, always pay attention to the ingredients listed and make sure your partner doesn’t have any allergies to any elements you want to use. Nothing will kill the mood like an emergency trip to the ER.