Welcome pingram! An important thing to remember about a ficus tree is that it is FINICKY!!! Letting it get bone dry for 2 days can affect it for 2 weeks (or more!). I wouldn't try to overcompensate with the water-you could do more harm than good. If it was doing well before it went dry, I would continue with the regimen you were doing. I've found it difficult to keep my ficus up to par inside, i think because it's not humid enough, so that may be another thing for you to consider. I would probably try watering about 2x a week and spraying it really well with some room temperature water--good luck!