uo , ▁yields ▁ 1 0 ▁to ▁ 1 5 ▁per ▁cent ▁of ▁a ▁fairly ▁vis c ous , ▁yellow ish , ▁vol atile ▁oil . ▁It ▁has ▁a ▁her b ace ous ▁and ▁b als am ic ▁od our . ▁This ▁species , ▁E rio ce phal us ▁er ico ides , ▁and ▁also ▁E rio ce phal us ▁rac emos us , ▁have ▁been ▁used ▁at ▁the ▁Cape ▁for ▁their ▁dia ph or etic ▁and ▁di ure t ic ▁effects . ▁ ▁T ogether ▁with ▁Metal asia ▁mur ic ata , ▁E rio ce phal us ▁pun ct ul atus ▁has ▁been ▁used ▁by ▁the ▁Southern ▁S oth o ▁to ▁f um ig ate ▁the ▁h ut ▁of ▁a ▁person ▁suffering ▁from ▁a ▁cold ▁or ▁di arr ho ea , ▁and ▁to ▁f um ig ate ▁a ▁h ut ▁during ▁ill ness ▁or ▁after ▁a ▁death . ▁ ▁The ▁N ama ▁use ▁a ▁de co ction ▁of ▁E rio ce phal us ▁um bell ul atus ▁DC ., ▁as ▁a ▁col ic ▁rem edy , ▁and ▁the ▁early ▁Cape ▁sett lers ▁apparently ▁used ▁it ▁similarly . ▁Ext raction ▁yields ▁a ▁light ▁yellow ▁vol atile ▁oil ▁with ▁a ▁sharp , ▁though ▁pleasant , ▁a rom atic ▁od our ▁and ▁a ▁burning ▁taste . ▁Until ▁modern ▁times ▁the ▁plant ▁has ▁been ▁various ly ▁used ▁as ▁a ▁household ▁medicine ▁in ▁the ▁Western ▁Province , ▁as ▁a ▁t inct ure ▁for ▁heart ▁troubles ▁and ▁o ed ema , ▁and ▁as ▁a ▁foot - b ath