My iPhone 6 front camera and ear speaker not working

i have iPhone 6 it was working perfectly. But since todays front camera and ear speaker stopped working. when I try to open front facing camera it become freezes. and when I try to call to someone then I can't hear anything from ear speaker but when I put on loud speaker I can hear anything. I live in Pakistan and here is no any official or authorised service provider please tell me what can I do ? Please help me please