This may be somewhat pedestrian but I'm starting out by making two one gallon jugs. One uses lager yeast and ale yeast in the other. After six hours the lager yeast jug is producing so much foam that it's climbing into the airlock! What do i do?
You need to rig up a blow off tube. If you have tubing that will fit inside the airlock use it. Otherwise you'll need tubing wide enough to seal the neck of the jug. Put the other end of the tubing in some sanitizer or cheap vodka.
Alternatively you could put the jug in an ice water bath to cool it off and slow the fermentation. Sounds like your temp may be too high for a lager yeast anyway with that kind of activity.