Are you ref to arnica or homeopathic arnica? Homeopathic arnica is
a good first aid remedy for any trauma. For engorgement which is
turning into infection - breasts are swollen, red streaks, hot...
homeopathic belladona is a good remedy - 6C or 30C even every hour.
Susan Nachman-Srebrnik, IBCLC
Ranana, Israel