?Thank you for your query at DoctorSpring.com.
The condition affecting your finger is called as Dactylitis. It can be seen in Psoriatic Arthritis, Spondyloarthritis or Inflammatory Bowel Disease associated Arthritis (IBD associated Arthritis).
In your case, any of these can be a possibility. However, from the picture, your skin lesion is unlikely to be Psoriasis.
I would like some additional information.
- Do you get back ache, especially in the lower back, which is maximum during early mornings? Or do any of your siblings/ other family members have back ache?
My recommendation is that you talk to your Gastroenterologist for a referral to a Rheumatologist. You need to get some tests done like a complete blood count, and markers of inflammation like erythrocyte sedimentation rate(ESR) and C-reactive protein (CRP) etc.
Prednisone is an excellent drug for your condition. You can also be put on Methotrexate/ Sulfasalazine if required along with the Prednisone to treat this condition and it may take some time, about 2 years for the Dactylitis to heal completely. However, you will get symptomatic relief within a week or earlier after starting treatment.
Let me know if you have any queries.