What type of oil should be avoided when someone has a skin allergy?

The avoidance of all essential oils without prior testing in individuals with skin allergies is based on the understanding that essential oils are highly concentrated plant extracts that can cause allergic reactions in sensitive individuals. Each essential oil has a unique chemical composition, and while some may be safe for those with skin allergies, others could trigger irritation or an allergic response.

In practice, it's essential to approach the use of essential oils with caution, particularly in individuals with known allergies, as they may react unpredictably. Conducting a patch test with a diluted sample of the essential oil is a common recommendation to determine if an individual can tolerate a specific oil before applying it more broadly. This method helps to ensure safety and mitigate the risk of adverse reactions, making the option to avoid all essential oils until tested necessary for individuals with skin allergies.

The other options present scenarios that may not adequately address the potential risks associated with essential oils in the context of skin allergies. Carrier oils, which are often used to dilute essential oils for safe application, are generally less likely to provoke a reaction but could still be problematic for individuals allergic to specific plant sources. Citrus oils can be phototoxic and may also cause sensitivity in certain individuals, but they do not encompass the broader risk present among all essential oils. Essential oils