@connectingdots, I noticed that you wished to post URLs to several journal articles with your post. You will be able to add URLs to your posts in a few days. There is a brief period where new members can't post links. We do this to deter spammers and keep the community safe.

Allow me to post them for you, including the titles of the papers:
- SARS-CoV-2 Vaccination and Chilblain-like Lesions: What Do We Know so Far? (2022) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9681186/
- Free Light Chains κ and λ as New Biomarkers of Selected Diseases (2023) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10253807/

- Post-vaccination COVID Toes (Chilblains) Exacerbated by Rituximab Infusion Suggests Interferon Activation as Mechanism (2021) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8500133/