When is steroid injection recommended for nail psoriasis?

Nail psoriasis can affect the nail plate, the skin around it, or the nail bed. A carefully placed intralesional steroid is intended to reduce inflammation close to the affected nail structures. It may be considered when a particular nail is troublesome, tender, or resistant to topical treatment. Because the injection is close to delicate tissue, the clinician weighs the expected benefit against discomfort and possible local changes.

Nail growth is gradual, so improvement in the visible plate may take time even after inflammation becomes quieter. A clinician may also check for fungal infection or other nail disorders because several conditions can cause thickening, separation, colour change, or pitting.

Bring a list of nail products and medicines, and mention diabetes, circulation problems, infections, allergies, or previous steroid reactions. Do not cut away attached nail or pick beneath it before assessment. After an injection, follow wound-care advice and report increasing swelling, drainage, severe pain, or a new indentation or colour change in the skin.

Seek assessment for a painful, swollen nail fold, pus, rapidly worsening separation, or a dark streak that is new or changing. These findings can have causes other than psoriasis and should be checked before injection. A nail that repeatedly catches, cracks, or interferes with daily tasks also merits a treatment review.

Ask which nail structure is inflamed, whether testing is needed, and why an injection is being considered for that location. Discuss other topical or systemic options, how nail growth will be followed, and which local changes should prompt a call.