How long will Cromolyn take to start working?
Using Cromolyn will not provide immediate relief of symptoms. In fact, it can take several days before you feel complete relief. The maximum effect is obtained in 1 to 2 weeks. In the meantime, other systemic, anti-allergy medications can be used if needed without fear of interaction with Cromolyn. You should begin to see modest improvement within a few days, however the full benefit will not be reached until you have been taking Cromolyn for 1-2 weeks.
