LSD and psilocybin are known to be nearly the only drugs that can stop a headache cycle. Check http://www.maps.org/research/cluster/psilo-lsd/ http://www.maps.o

LSD and psilocybin are known to be nearly the only drugs that can stop a headache cycle. Check http://www.maps.org/research/cluster/psilo-lsd/ http://www.maps.org/research/cluster/psilo-lsd/