Micellar water is generally considered safe and gentle for most people, including those with sensitive skin. Styes, also known as hordeolums, occur when oil glands or hair follicles on the eyelid become infected or blocked. They are typically caused by bacteria, not by the use of micellar water.

However, it's worth noting that everyone's skin is unique, and some individuals may have sensitivities or allergies to specific ingredients found in micellar water or other skincare products. If you have experienced a stye after using micellar water, it could be due to an allergic reaction or irritation caused by a specific ingredient in the product.

To determine the cause of the stye, it is advisable to consult with a dermatologist or healthcare professional who can evaluate your specific situation. They can help identify any potential allergens or irritants and provide appropriate recommendations for your skincare routine.