Buffering the pH of lidocaine makes local numbing less painful. Doing so may cause a tingling and numbing sensation in their mouths. Simple pain medication such as ibuprofen or numbing mouth gel may be used. Numbing medication, such as topical lidocaine, may also help. They are typically injected along with a small amount of a numbing drug called lidocaine. He does this by withholding pain numbing drugs from him. Animals can further elicit positive emotions, targeting emotional numbing experiences. Some numbing creams are available over the counter. When inhaled or injected, it causes a numbing effect. Avoidance and denial are typical tendencies of psychic numbing. The observable emotional response is not enough to understand the concept of psychic numbing. Emotional detachment, as well as dissociation or "numbing out" can frequently occur. Calcium oxalate can produce sores and numbing on ingestion and may even be fatal. Anthony DeCurtis of "Rolling Stone" said "The overwhelming effect of the book is numbing". It was numbing and shocking, yet thrilling, because the answer was so utterly perfect.