AVN per se does not have successful medicinal management.
Discussion can be there between saving your femoral head or sacrificing with a Hip Replacement.
This decision is taken based on Joint changes and Femoral Head status.
Next Steps
Consult online with all relavent papers.
Health Tips
You are young, working and taking correct decision in time can save your Hip
Dragging it for too. long can deem the Hip unsalvagable.