to treat scar.. i think its not just simple as visiting doctors and treating on the face... you need to start from inside too what you eat will reflects on your face... that's a fact...

prinseca.. i would suggest u to drink more lemon.. and orange... lemon has higher content of vitamin C.. and vitamin C's are mainly to rebuild your skin cells... and it will lighten the scars.. or whiten your skin as well...

second.. eat more tau fu fah.. protein...

third.. no oily... or those soy sauce (black black colour one), these will make your scar darker...

fourth.. b very hardworking in steps of maintaining your skin... every mask in 3-4 days, wash properly.. sleep properly...

sensitive is not just towards the dirty air.. its from beneath... u have to take care your food intake first...

trust me about the lemon juice and orange juice... coz everytime i go facial.. i will drink more lemon juice and orang juice which will lighten my scars within 4 days to a week

hope this helps..

no problem