Used bactroban (mupirocin) cream on infected insect bites, all healed but left with whiter skin where i used the cream because have tanned legs, will it even out?

Should resolve : While I am strongly opposed to tanning since it damages your skin, the white spots developed because of the problem you had on your skin beforehand. This is called post inflammatory hypopigmentation and will resolve with time if you wear sunscreen on your legs tell your legs are not so tan it will make the spots less noticeable till they resolve.