What are two common signs of adverse reactions to essential oils during a session?

• A. Skin irritation or rash; dizziness, coughing, throat irritation; in severe cases bronchospasm.
• B. Increased energy and improved mood.
• C. Headache only.
• D. Nausea only.

Answer: (A)

Adverse reactions to essential oils during a session typically show up on two fronts: the skin and the respiratory system. When oils contact the skin, they can cause irritation or sensitization, leading to redness, itching, or a rash. Inhalation of the oils’ vapors can irritate the airways, producing dizziness, coughing, and throat irritation. In some individuals, especially with potent oils or higher concentrations, this can escalate to bronchospasm, a serious tightening of the airways. These signs—skin changes plus respiratory symptoms—are the most immediate and commonly observed reactions in a session, signaling that the oil exposure is not tolerable for the person at that moment. While increased energy or improved mood can occur with some oils, they are not indicators of adverse reaction, and headaches or nausea can happen in some cases but are not the typical pair of signs seen during a session. If signs appear, stop use, ensure fresh air, wash affected skin, and seek guidance if airway symptoms escalate.