Chronic leukaemia tends to progress slowly over the course of many years. Chronic leukaemia is classified according to the type of white blood cells affected by cancer. This topic focuses on chronic lymphocytic leukaemia, which affects types of white blood cells called lymphocytes.
However, like many drugs and herbal remedies, oil of oregano can have side effects and may produce allergic reactions in those sensitive to this family of plants. Origanum vulgare, the source of oil of oregano, comes from the same plant family as basil, hyssop, marjoram, mint, sage and thyme.
Oregano leaf is LIKELY SAFE when taken in the amounts found in food and POSSIBLY SAFE when taken by mouth or applied to the skin in medicinal amounts. Mild side effects include stomach upset. Oregano might also cause an allergic reaction in people who have an allergy to plants in the Lamiaceae family.