Nope, not yet. I experienced 100% relief of the drip for a month after a xylitol nasal rinse that dislodged huge semi hard yellow/bloody mucus globs. So I thought: this was it, these globs have been blocking normal drainage. But unfortunately, the drip returned after a month. Will see my ENT again next Friday and gonna ask for a referral to a more specialized ENT. My best guesses for now are: a. more mucus globs are stuck somewhere, b. It's a thornwaldt crust or cyst that's been overlooked, c. It's post covid mystery. To be continued...