Hi there ..
This appears to be some sort of crusted impetigo.
Seborrheic Dermatitis also needs to be considered given its present for 4 months as per your history.
T-bact is an ointment you can try to see if you get some relief.
But for best results, please consult directly Online using this App's INSTANT ONLINE Consultation 🙏
Will be able to provide you with a prescription and resolution.
Health Tips
Avoid OTC products, home remedies, self medication and Dr Google's suggestions 🙏