You won't have any immune issues/tolerance to them since they are digestive enzymes and probiotics that his body makes/needs constantly. He just needed some help with supply since his body was so stressed and unbalanced. Many people - and their pets - use them daily, others short term when symptoms arise. So I'd say it's up to you.
I'm so glad he's doing better. Because the wind (as unpleasant as it was) was only a symptom of imbalance, this lets you know that his whole system is doing much better and healthier.
