How effective is steroid injection into the skin for alopecia areata?

A dermatologist places a corticosteroid into selected bald patches to calm the local immune activity involved in alopecia areata. The aim is to reduce ongoing patch expansion and encourage follicles that remain capable of producing hair. Early regrowth may appear as fine or lighter hairs before becoming more noticeable. Injections treat the selected areas; they do not necessarily prevent new patches elsewhere.

The result depends on factors such as patch size, duration, site, and whether the condition is still spreading. Scalp skin can become temporarily lighter, thinner, or indented at injection points, so dose and spacing matter.

Have the diagnosis confirmed before treatment, particularly if the loss is diffuse, scaly, painful, or associated with broken hairs. Your dermatologist can map the patches, select injection sites, and explain how progress will be reviewed. Attend the planned follow-up even when regrowth is slow, because activity and new patches may change the plan.

Avoid injecting the area yourself or using leftover steroid medicine. Gentle scalp care and photographs taken in similar lighting can help you and your clinician compare changes without pulling or irritating new hairs.

Contact your dermatologist promptly if hair loss is rapidly expanding, involves eyebrows or eyelashes, or comes with scalp pain, redness, scaling, pus, or marked tenderness. Seek urgent medical help for facial swelling, breathing difficulty, or widespread hives after an injection. Report increasing dents, persistent soreness, or a visible change in skin colour at injection sites.

Ask whether the pattern fits alopecia areata, which patches are suitable for injection, when improvement should be checked, and what other options apply if new areas appear. Clarify the expected local skin effects, how treatment will be paused, and how eyebrow or eyelash involvement would be managed.