You want to up regulate your receptors, ECA is already down regulating them for you.
For albuterol-Clen, You take Keto every 3rd week or 4th week for that entire week
Week 1: no keto, normal dosage clen
Week 2: no keto, normal dosage clen
week 3: Keto everynight 1-3 mg, normal dosage clen
week 4: normal dosage clen
Or do it week 4, it depends, when you REALLY start to feel the effects diminishing, then run it, either week.
EDIT: One more thing, take your temp at different times during the day, for a week not on ECA and record it, then take it for the first week on ECA, different times during the day, and record it.
When the latter readings, become more and more like the former readings, it's time for Ketotifen, benadryl is possible but ketotifen is preferred.