What to expect from oral corticosteroid treatment for erythema nodosum

Erythema nodosum causes tender, inflamed lumps, often on the shins. Before prescribing tablets, a clinician may look for an underlying infection, medicine reaction, or inflammatory illness because calming the skin does not address every possible trigger.

The dose and length of treatment depend on the severity of the inflammation and your wider health. Improvement may be judged by less tenderness, fewer new lumps, and easier movement. The older lumps can take time to fade and may change colour as they heal.

Take the medicine exactly as prescribed and do not stop suddenly unless the prescriber gives a tapering plan. Taking it with food may help reduce stomach upset. Keep follow-up appointments so your clinician can review blood pressure, blood glucose, mood, sleep, infection symptoms, and whether the suspected trigger needs separate care.

Tell the prescribing team about diabetes, stomach ulcers, high blood pressure, osteoporosis, eye disease, mental health conditions, current infections, and every medicine or supplement you use. Resting the legs, elevating them, and using clinician-approved pain relief may help while the nodules settle.

Contact your clinician promptly if new painful lumps continue to appear, the pain becomes difficult to control, or you develop fever, worsening redness, drainage, or feeling markedly unwell. Seek urgent help for severe breathing difficulty, facial swelling, confusion, sudden vision change, black stools, or severe abdominal pain.

Ask what may have triggered the erythema nodosum, how improvement will be assessed, whether you need tests for an underlying condition, and what tapering schedule applies. Ask which symptoms could signal infection or a corticosteroid effect and when your next review should occur.