iPhone 5S screen popped out in the upper right corner
I got my phone around October of 2013 , and now i noticed that my upper right corner screen is popping out , i can press it in and it will make some "noise"
i'm out of warranty tho... I am planning to go to Singapore (there is no official apple retail store yet) to repair it , but i've googled and it say that there isn't apple genius bar at Singapore , only authorised reseller.
What should i do? Is the battery swollen? Is it safe for me to use it longer? And i experienced a poor battery life , only 30 minutes of browsing articles in safari , my battery drops to 74% (On 3G).
iPhone 5s, iOS 8.4