Thanks for the query. This presentation can be seen with many diseases. This is a limited information to make precise recommendations. The best option is to consult a Dermatologist to understand the condition. A thorough evaluation if necessary should be done. Hope it helps you.
Next Steps
Meet a dermatologist, A skin biopsy should be performed if felt necessary to understand the specific pathology and treat accordingly.
Health Tips
Proper treatment can follow a proper evaluation,