There are various ways that an addict will use this drug, amongst them being
snorting
Snorting cocaine (also known as freebasing), for example, can lead to the
loss of the sense of smell, nosebleeds, problems with swallowing, hoarseness and
a chronically running nose. A sure sign is someone who is constantly sniffing.
Snorting is a highly dangerous way of using it as the cocaine reaches the brain
within seconds, resulting in an intense high but the euphoria quickly
disappears, making the addict increase his use.
The Food and Drug Administration has warned consumers about these dangers.
The warning reminded people that “drugs purchased in foreign countries are not
regulated by the FDA” and “do not carry the same FDA assurances of safety,
effectiveness, and manufacturing quality as drugs purchased within the United
States.”
Relapse prevention is a cognitive-behavioral approach with the goal of
identifying and preventing high-risk situations such as substance abuse,
obsessive-compulsive behavior, sexual offending, obesity, and depression.
Furthermore, relapse prevention is an important component in the treatment
process of alcoholism, or alcohol dependence. 
Pure cocaine, along with the so-called “poor man’s cocaine” known as “crack,”
is among the most widely abused substances in the world today. The pure cocaine
in powder form is usually mistaken as fine sugar or baking soda. The street
variant called crack is diluted and mixed with baking soda, allowing the street
pushers to reap more profits. People who become addicted to both cocaine and
“crack” are considered to be among the worst addicts that can be found in a
rehab clinic mainly because of the intense physical and mental health
damage that prolonged use can lead to. There is an extensive list of negative
effects associated with long-term use of “crack.” Withdrawal from crack
addiction is also very difficult in physiological and psychological terms. 
