Keep it watered, moist but not wet. That's especially important during Santa Anna conditions. (Today, the humidity did not go above 26% relative and stayed mostly below 20%.)
If the foliage seems to yellow but not fall, give it a slight feeding with commercial azalea/camellia food. However, if the leaves turn orange or red, the variety is deciduous; then don't feed.
Don't prune until after spring flowering.
I have two 'Inga' azaleas in pots, one in front (about half-day sun) and one in back (mostly shade). The one in back is not blooming right now. The one in front has not really stopped blooming since spring. All the others -- George Taber, Alaska, Formosa, and Pride of Dorking, all in the ground -- are waiting for spring.
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