Leg and foot cramps are mainly triggered by cold stimulation, rapid continuous muscle contraction, excessive perspiration, severe fatigue and calcium deficiency. Below are effective preventive methods:
Soak feet in warm water at around 40℃ for 5 to 10 minutes before bedtime. Use a deep basin with sufficient water covering above the ankles. This relaxes tendons, activates blood circulation and relieves muscle spasms.
Warm high-proof liquor (do not ignite it), pour a few drops into palms, and rub the cramp-prone area up and down firmly for two minutes until the skin turns slightly red. The treatment boosts local muscle blood flow and reduces cramp frequency.
Massage vulnerable areas with 5% turpentine oil to mitigate nighttime cramps.
Sip a small amount of plain boiled water before sleep to improve comfort overnight.