How long does steroid injection into the skin take to work for hidradenitis suppurativa?

The medicine is placed into a selected inflamed nodule or flare rather than spread across all affected skin. It can reduce local inflammatory activity, but it does not remove the tendency to develop hidradenitis suppurativa lesions elsewhere. A deep, long-standing, draining, or scarred area may respond differently from a new tender lump. Improvement can mean less tenderness, reduced firmness, or less swelling; the opening or drainage may not change at the same pace.

Follow the aftercare instructions given for the injection site and avoid squeezing or repeatedly rubbing the lesion. Note pain, swelling, drainage, and skin colour over the next several days. Keep any planned review, because your clinician may need to examine whether the inflammation is settling or whether another part of your hidradenitis suppurativa needs treatment. A steroid injection is usually a targeted option, not a substitute for an overall flare-prevention plan.

Contact your clinician promptly if redness, warmth, swelling, or pain is spreading, if drainage becomes heavy or foul-smelling, or if you feel feverish or unwell. Seek urgent assessment for rapidly worsening illness, faintness, or severe pain out of proportion to the skin findings. Also report marked skin thinning, a dent, or a light or dark patch developing at the injection site.

Ask which lesion was injected, what change should appear first, and when it should be reviewed. You can also ask how this injection fits with treatment for recurring flares and what to do if the lump remains painful or continues draining.