Calendula, or marigold, grows abundantly in Europe, western Asia and North America. Its beneficial properties stem from the flowers of the plant, and they have been used in topical preparations for a variety of conditions. While typically associated with topical application, some internal uses have been indicated by traditional use, but you should consult with a knowledgeable practitioner before taking internally. According to Memorial Sloan-Kettering Cancer Center, or MSKCC, studies have demonstrated that calendula possesses anti-inflammatory, anti-bacterial, anti-parasitic and anti-viral activity. Possible side effects include an allergic reaction. You can find calendula in a variety of forms, including ointments, tinctures and washes.
Wound Healing
The University of Maryland Medical Center notes evidence that suggests calendula has wound healing properties. It appears to increase blood circulation to the affected area and facilitate the production of collagen proteins which promote skin healing. Try applying calendula for minor burns, cuts and bruises.
Skin Irritation
Its anti-inflammatory properties and anti-bacterial properties make calendula a popular treatment for a variety of skin conditions. This treatment might help inflammatory conditions like eczema and psoriasis while this action plus its anti-bacterial action might benefit acne-prone skin. Dr. Andrew Weil, physician and integrative medicine expert, also recommends calendula for dry and cracked skin and rashes.
Radiation-Induced Dermatitis
The MSKCC notes a study where breast cancer patients being treated with radiation used either calendula or trolamine, a common conventional treatment for radiation-induced skin irritation. The group using calendula had far fewer incidences of grade two dermatitis or higher compared to the group using the conventional treatment.
Ear Infections
The UMMC notes that calendula tincture has a history of use as a treatment for ear infections in children. It advises caution as studies to investigate this use and possible side effects were poorly designed.
HIV and Cancer
MSKCC notes that calendula appeared to interfere with the replication of HIV cells. It also mentions a study where calendula exhibited anti-tumor activity in mice but results were not consistent throughout the study. Not enough evidence supports using calendula for these serious health conditions.



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