Is it safe to wax or shave my leg if I have a café au lait birthmark on it?

Hello , I am having a café au lait birthmark on my leg that appeared when i was 10 years old, a dermatologist checked it back then and said it was safe and it could be removed by laser when i become 18, so now im 25 years old, fortunatly the birthmark looks the same but i am having some questions Would laser remove the birthmark or make it darker ? Is it safe to wax my leg or to shave it ? Would it be safe to use IPL or laser for hair removel in my case ?