What are the best & non-surgical (low budget) ways to get rid of sun burn tans? In meaning of lightening my skin back & health.

A year ago,I went to the pool&stayed for 6hours,didn't put sunscreen,didnt have any.A few days my skin had tons of large blisters around my mid-top back,shoulders&arms.4 days later ,large thick skin started to come off&it wasn't dried skin .I put some cream to protect&heal.Now on my shoulders&face there are tiny sun spots/moles.The affected area is yellow-red but turns very red in the sun.I used to be a very fair/pale skin color on areas.I just want my skin back without any laser,Just creams .