Granuloma annularehttps://en.wikipedia.org/wiki/Granuloma_annulare
Granuloma annulare is a chronic skin condition that presents as reddish bumps arranged in a circular or ring‑shaped pattern. It can appear at any age, although two‑thirds of patients are under 30 years old, and it is most commonly seen in children and young adults.

Because granuloma annulare is usually asymptomatic, the initial treatment is generally topical steroids. If it does not improve with topical therapy, intradermal steroid injections may be used.

○ Treatment
Improvement is often seen after 3 to 5 intralesional steroid injections given at one‑month intervals.
#Triamcinolone intralesional injection
☆ In the 2022 Stiftung Warentest results from Germany, consumer satisfaction with ModelDerm was only slightly lower than with paid telemedicine consultations.
  • Perforating form of Granuloma annulare ― One of the common areas is the dorsal side of the hand. It usually appears as asymptomatic papules.
  • Tinea corporis and erythema annulare centrifugum should be considered as differential diagnoses.
  • It is characterized by a hard, annular-shaped lesion. There are no symptoms such as itching or pain.
References Granuloma Annulare 29083715 
NIH
Granuloma annulare is a cutaneous granulomatous disease that is not caused by an infection. It is the most common non-infectious granulomatous disease. The disease is benign and often self-limited. Granuloma annulare usually presents as erythematous plaques or papules arranged in an annular configuration on the upper extremities. In addition to the more common presentation, termed localized granuloma annulare, other clinical variants of granuloma annulare include generalized, perforating, patch, and subcutaneous. Despite being a benign disease, it can be associated with more serious conditions such as HIV or malignancy.
 Granuloma Annulare: An Updated Review of Epidemiology, Pathogenesis, and Treatment Options 34495491 
NIH
Granuloma annulare (GA) is an inflammatory granulomatous skin disease that can be localized (localized GA) or disseminated (generalized GA), with patch, perforating, and subcutaneous subtypes being less common variants of this benign condition.