Rhus Tox

What is this remedy used for in an acute situation:

Rhus Tox - Commonly used for acute muscle strains, sprains, or rheumatic pains that are worse upon initial movement but improve with continued motion.

Comes in either: 

• A dripulator closure for 15ml only
• A dropper for 15ml or 25ml only or 
• Pillules

Ingredients: 

Liquid: the remedy selected preserved in 0.5% brandy and 95% distilled water

Pillules: 250 sucrose pillules that have been medicated with the remedy chosen