First, before the injection should be well positioned, try to avoid blood vessels and nerves, local disinfection of the preparation. Second, after injection there may be a slight local redness, swelling, pain, do not use your hands to scratch or other drugs to deal with, generally 7 days later will naturally subside. Third, the local area should be kept clean and hygienic within a day after injection, keep the local area dry, do not let stained with sewage to avoid infection. Fourth, within a week after injection should avoid spicy and stimulating food. Fifth, the need for long-term intramuscular injection of patients, the injection site should be frequently replaced to avoid the emergence of hard nodules, if the emergence of hard nodules, hot wet towels can be taken externally.