Calendula
Calendula, pot marigold, is a genus of about 12–20 species of annual or perennial
herbacessential oilsus plants in the daisy family Asteraceae as shown in figure 4. Calendula in
suspension or in tincture is used topically to treat acne, reducing inflammation, controlling
bleeding and soothing irritated tissue.[11]
There is "limited evidence" that calendula cream or
ointment is effective in treating radiation dermatitis.[12,13] In a randomized study of 254
radiation patients, topical application of 4% calendula ointment resulted in far fewer occurrences
of Grade 2 or higher dermatitis than occurred in the group using trolamine. Calendula users also
experienced less radiation-induced pain and fewer breaks in treatment