Ice it. Ice your injury for 20 to 30 minutes every 3 to 4 hours to reduce pain and swelling. Continue this for 2 or 3 days, or until the pain is gone. Compress your leg. Use an elastic bandage around the lower leg and ankle to keep down swelling.
Finally, two terms you may run across in the future are oxidizing agent (or oxidant) and a reducing agent (reductant). An oxidizing agent causes oxidation and is reduced in the reaction. A reducing agent causes the reduction in the redox reaction. The reducing agent is oxidized in the reaction.
Both reducing agents are a source of Hâ, which is transferred from the boron or aluminum to the carbonyl. group. Since a reduction requires two hydrogen atoms, the second comes from the solvent (when using. NaBH4) or from added acid (when using LiAlH4). Since LiAlH4 is so reactive, it produces H2 in polar.