Questions about skin health / procedures

Has anyone tried laser toning in this kind of weather? My melasma and blemishes seem to have suddenly gotten darker lately, so I'm planning to visit a dermatologist for a consultation. Some places say it's okay to get it done now, while others advise waiting until autumn because summer is approaching, so I'm having a hard time deciding. For those who have had it done recently, could you please share some tips on whether you were satisfied and how you manage your sun protection?