There are a few possibilities for this appearance such as capillaritis, eczema or a vasculitis.
It will be best for you to visit a trusted dermatologist so that we can ask you some questions and have a closer look at your skin before deciding on the most appropriate management.
Usually simple measures such as topical creams will suffice. Occasionally stronger medicines or a skin biopsy may be needed.
Hope this helps.
Best regards
Dr Stephanie Ho, Dermatologist