I have been working for an asthma/allergy/immunology practice for just over a year. I needed something with fairly regular hours and without too much stress. I have young children and could not do the day/night rotation and weekend thing anymore!!
This is what I do at work: give allergy shots, allergy testing (scratch tests and intradermal tests), oral challenges (patient eats increasing amounts of whatever you are testing for while being monitored), room patients (take vitals, review meds, document symptoms/problems), spirometry, immunizations (flu shot challenges, immunizations for immunology patients), nebulizer treatments, lots of teaching on things such as inhalers, epi-pen, allergy avoidance, etc. We also do a lot of phone triage and things like school forms, prior auths, prescription refills, etc.
Like the poster above said, it is not as good pay as the hospital but it works for me. Good luck!