YES! You can get your lashes wet right after your appointment, however you will still want to avoid heat/steam for 24-48 hours.

When applied correctly eyelash extensions shouldn't hurt.  All lashes are applied with professional tools and done by a certified Lash technician from an accredited course. 

When applied correctly the eyelash extension will not damage your natural lash. This is because the technician will make sure that your natural lash has the correct integrity for the extension being added. 

You can still wear eye makeup but not mascara with your extensions! It is important to make sure the products you use are oil-free so it doesn't damage the glue holding the extension to your natural lash.