SLKH is a recipe shared to me by a fellow LATCH Mom who based it on Nanay Innes' recipe (the one who runs Arugaan). SLKH stands for sampalok, luya, kalamansi and honey (I guess it should have been SLKP because honey is pulot in Filipino).
Anyway, here's what you do:
1) Boil about 4 sampaloc (tamarind) with a thumb-size of luya (ginger) and 2 glasses of water
2) Strain and add 4-6 calamansi
3) Sweeten with honey according to taste
4) Sip to your heart's content, but not on an empty stomach