You are suffering from photo dermatitis causing redness.. Medicine available for good improvement......As the treatment varies depending on the severity... Send photos of the affected area, by direct online consultation for accurate diagnosis and treatment.

Ima dr Aman, have I seen you earlier? It will be best if you can send some pictures etc or upload them on this link and I can give you Better quality of advice, once I get some background medical history. https://www.sparshskinclinic.com/consult-online/ Also there are many options to manage dullness and redness well. But underlying cause has to be treated and understood for proper management.