Continue with Arnica till complete healing of the wound.
Use Graph only when needed 30c potency is sufficient.
Take about 100ml of distilled water or boiled cooled filtered water. Add to it one drop or one globule of the medicine. Shake till the globule is completely dissolved.
Take one spoonful out of it as a dose and add another one spoonful of water to the stock solution.
The theme behind is to maintain the stock to 100ml all the time.
By doing this the potency will be raised with every dose and repetition of the medicine will continue without any aggravation. The healing process will be accelerated.
You can do the same with Arnica and others with advantage.
sajjad.