Clove essential oil does not seem to produce any side effects, but like many essential oils, it is not recommended for use with pregnant women or children.

Clove oil, a herb cultivated in parts of Asia, Africa and Brazil, is commonly used in various cuisines for its fragrance and flavor. Several healing qualities have been associated with it. Its oil, also known as eugenol, has been used as a local anesthetic, an analgesic and an antibacterial and anti-inflammatory solution. It is also known to be a dental pain reliever. However, certain side effects of clove oil are important to note.

Clove oil has some good attributes, people use it for all sorts of reasons, the most common being to relieve toothaches, indigestion, coughs, asthma and headaches. Probably the most common reason people use clove oil is to relive sore gums and mouth ulcers. People also use it for wounds, cuts and fungal infections. Some people even use lotions or massage oils with clove oil. Before you decide to try this product, be aware of the many unpleasant and possibly life-threatening side effects.

Clove Oil

Clove Oil

Side Effects of Clove Oil


According to Medline Plus, a subset of the National Institutes of Health, certain individuals have reported allergies to clove oil. These include cases of anaphylaxis or severe allergic reactions. The symptoms of an allergic reaction include shortness of breath, rashes and itching. In the case of clove oil, an allergic reaction may take place when it is applied to the skin or in the mouth during dental procedures.

Topical Side Effects

Clove oil can have a numbing effect when applied to skin or the inside of the mouth, according to NIH, thus decreasing the ability to feel pain. In contrast, clove oil also can have more serious effects. It can cause burning sensations, tissue damage and dry, sore lips. It also may damage teeth and increase the risk of cavities. Like most other essential oil.

Skin Sensitive

Cloves oil can take a toll on your skin by making it super sensitive. It is mostly true for the topical application of undiluted clove oil, which is nothing but the unprocessed or unrefined extract of the spice. It can give you irritation, rashes, burns, or contact dermatitis. Sometimes it can even damage the skin cells.


Large doses of undiluted clove oil can cause toxic effects. As listed by NIH, these side effects of clove oil can include nausea, vomiting, sore throat, sedation, difficulty breathing, fluid in the lungs and seizures. Large amounts of undiluted clove oil also can cause blood disorders, kidney failure and liver damage. People with kidney or liver disorders or who have had seizures should not take clove oil. All these effects are more likely in young children, even with small doses. Children, as well as pregnant and breastfeeding women, should not use clove oil.

Side Effects of Clove Oil

Side Effects of Clove Oil

Reduced Blood Sugar

Clove oil taken internally may lower blood glucose levels, according to InteliHealth. People prone to low blood sugar (hypoglycemia) should be cautious about using clove oil. Additionally, individuals taking medications such as metformin or insulin to regulate blood sugar levels may need to monitor their blood glucose more closely when also taking clove oil.

Increased Bleeding

Clove oil may increase the risk of abnormal bleeding, as indicated by laboratory research, according to NIH. People with bleeding disorders such as hemophilia or who are taking drugs or herbs that have blood-thinning effects should be cautious about taking clove oil internally. These substances include anticoagulants such as warfarin and heparin, and nonsteroidal anti-inflammatory drugs such as ibuprofen, aspirin and naproxen. Patients also should stop taking clove oil several days before surgery or a dental procedure.