How effective is oral corticosteroid treatment for erythema nodosum?

Erythema nodosum causes tender, warm lumps, often on the shins, as inflammation develops in deeper skin tissue. Corticosteroids suppress that inflammation, so pain, warmth, and swelling may settle while the body heals. The lumps can change colour and remain sensitive for a while even when the process is improving.

Because erythema nodosum can accompany infections, medicines, inflammatory bowel disease, or other conditions, suppressing the immune response may be inappropriate until a clinician has considered those possibilities. Treating the trigger is often part of the plan.

Use the medicine only at the prescribed dose and follow instructions about reducing it. Resting the legs, elevating them, and using comfortable clothing may reduce pressure on tender nodules. Do not squeeze or massage the lumps. Tell the clinician if you have diabetes, high blood pressure, a current infection, or previous steroid problems.

Keep a record of new lumps, fever, joint pain, cough, bowel changes, or medicine changes. These details help identify a trigger and decide whether another treatment or investigation is needed. Arrange review if pain remains difficult to control or new nodules continue to appear.

Seek prompt care for fever, rapidly worsening redness, severe one-sided leg swelling, breathing difficulty, chest pain, or feeling very unwell. These features may need assessment for infection, a blood clot, or a cause beyond the skin. Contact the prescriber about severe mood changes, marked weakness, vision changes, or signs of high blood sugar while taking corticosteroids.

Ask what cause is being considered, which tests are appropriate, how pain and new nodules will be monitored, and when improvement should be reviewed. Ask about supportive measures, the dose-reduction plan, and symptoms that should prompt an earlier appointment.