Two recommendations:
Move and Raised Beds.

Neutral soil can be amended, but alkaline soil is best to avoid with a raised bed. The good new is that azaleas have shallow roots so the raised bed need not be too high.

I am going to send you the link to my website which has sections on moving, raised beds, lace bug, etc. It has an index to these topics.

Here is a link that might be useful: How to grow rhododendrons and azaleas

Thank you so much. Never heard about this problem before.