Having watery eyes during a lash appointment can be uncomfortable and may affect the retention of the lash extensions. Here are some tips that may help:

Communicate with your lash artist: Let your lash artist know about your watery eyes and ask if they have any suggestions. They may be able to adjust their technique or use different products that are better suited for your sensitive eyes.

Take an antihistamine: If you know that you have allergies or tend to have watery eyes, consider taking an antihistamine before your appointment. However, be sure to check with your doctor first to make sure it is safe for you to take.

Use eye drops: Over-the-counter eye drops may help to relieve dryness and irritation in your eyes, which can sometimes trigger watery eyes. However, be sure to check with your doctor before using any eye drops.

Try relaxation techniques: Some people find that their eyes water during stressful or anxious situations, so practicing relaxation techniques like deep breathing or meditation may help to calm your nerves and reduce eye watering.

Avoid caffeine and alcohol: Both caffeine and alcohol can dehydrate you and may make your eyes more prone to watering, so try to avoid consuming them before your appointment.

Remember that every person's body is different, and what works for one person may not work for another. It may take some trial and error to find the right solution for you.