By chance are you using the rba? I found that if you stuff too little cotton in the rba it is more prone to spitting and thus you get juice st the chimney.
But, do take not along the way some juice is going to accumulate at the drip tip. Due to several reasons:
1. You didn't inhale all the vapor produce and some of em are in the chimney and condense back in to liquid form.
2. Spitting. Nowhere by when you fire the coil does a lot of poping and crackling sound and sends droplets of juice all around the rba and also the chimney.
3. Over Tightening of the OCC/RBA where the silicon gasket got squeeze out of its seat and prone to minimal leaks. Over time you will get juice in ur airflow chamber if this is the case.
More or less there will be some along the way, so get your tissues ready!
Vape on.
P.s. for the sake of proof I will attach a pic of my STM with bell cap about 30 puffs.notice the condensation and the juice trap around the drip tip base.