The basic principle for coal preparation is to first liberate the coal particles from the gangue (quartz) and then, by applying different water based techniques, separate the coal particles and gangue particles.
Acetaminophen in the Treatment of Acute Low Back Pain. For low back pain, acetaminophen can be effectively used as an analgesic (or pain killer). Doctor-written article on acetaminophen as a pain reliever for lower back pain.
Best essential oils for back pain. The following essential oils can all be used to treat back pain naturally: Chamomile oil helps to control muscle spasms and has pain-relieving and anti-inflammatory properties. Lavender oil prevents muscle spasms and inflammation. It also helps to relieve tension, which may contribute to or worsen back pain.