| Grade 1: mild | Grade 2: moderate | Grade 3: severe | Grade 4: extreme |
---|---|---|---|---|
Pain at injection site (including ache) but not skin discomfort | No treatment or responds to occasional treatment | Partial response to treatment | Need to use regular treatment to control pain | Hospitalization |
Itching or irritation in the skin at site of injection | No treatment or responds well to treatment prescribed | Partial response to treatment | Need to use regular treatment to control symptoms | Hospitalization |