How Do You Get Rid Of Scars Left By Mosquito Bites?

Mosquitoes absolutely LOVE my blood because every summer I get like 1000000 mosquito bites. The thing is that they never go away once I get them. The iching and redness stops but theres still like a brown mark there. People keep asking me if they're bruises. I've tried using lemon juice because I heard it worked getting rid of acne scars but it didn't work.

Did anyone have the same problem?
How would I get rid of them? [or at least make them less visible]