72 yr old male....while doing yardwork, received minor scratches and scapes on both forearms, resulting in small, medium to large bruises. It s happened before and bruising went away, but today have rather large bruise approx. 2 1/2 in long X 1 1/2 to 2 in width....my wife (RN for 50 + yrs says they will go away, give it time)...can I treat at least the large bruise with ice or anything? Thank you, E.B.