To speed the healing, you can: 1  Rest the leg. Avoid putting weight on the leg as best you can. 2  Ice your leg to reduce pain and swelling. Do it for 20-30 minutes every three to four hours for two to three days, or until the pain is gone. 3  Compress your leg. Use an elastic bandage around the leg to keep down swelling.
Menstrual cramps are caused by uterine contractions (when the muscles in the uterus tighten and relax allowing blood to leave the uterus). The lining of the uterus releases special chemicals called âprostaglandins.â These substances can increase the strength of the contractions, especially if the levels rise.
Doctors have not pinpointed the exact cause of PMS, but many believe it is linked to changing hormone levels. Following a girl's period, the amounts of estrogen and progesterone (female hormones) in her body increase. Then about 1 week before her period starts, levels of both of these hormones begin to fall. The thinking is that these changing hormone levels can lead to PMS symptoms.