It used carbon reinforced carbon on the leading edge of the wings and ceramic tiles.
Both of which could and did fail due to damage which was the point.
Sorry you didn’t see that.
Neither of which were ablative. Sorry you didn't see that.
Both of which could and did survive light to moderate damage on EVERY flight. Perhaps you didn't know that. The shielding only failed when completely broken through by impact.
And seriously: that persistent cough usually indicates a real medical problem.