According to ayurveda ,skin is the expression of your internal digestive as well as nourishing system.
So any skin issue is not just the skin problem. Hence an internal medicine along with external application is the complete solution for the same.
Please visit nearby vaidya for finding out exact causative factor and accordingly internal medicine..
Next Steps
for a time being , u can apply chandan+ masoor dal+ ama haldi+ gulab jal paste as a face pack.
Health Tips
avoid any acidity causing food after evening.