Redness and swelling at the injection site, when you first start to use insulin, may occur. To avoid this, let the injection site dry after cleaning it with alcohol. This irritation should generally disappear in 2-3 weeks; otherwise consult your doctor.

To minimize pain injections, make sure that:

• Muscles around the injection site are relaxed.
• The needle penetrates the skin quickly
• Insulin is at room temperature.