First, read the English article below.

When you breathe through your mouth instead of through your nose, your throat will turn dry. A dry throat will become parched and sore, which in turn will make your voice sound scratchy. Ever noticed how your throat turns sore during a cold? That's because you breathe through your mouth when your nose is all clogged up! Limiting the amount of water you drink will help to dry out your throat, too. Aside from that, if you are 'suffering' from a sore throat it should appear that you are only taking small sips if you drink anything at all.  Keep in mind that this is not something you should do throughout the whole day, and it works best when you breath through your mouth. For example, try going for 1 hour with just breathing through your mouth and without drinking any water. If you cough a few times, you will notice that your throat might start to feel a little scratchy from the strain. You don't want to overdo it and irritate your throat more than necessary. Just the sound of you coughing several times should be enough to convince the people that hear you that you might be getting sick. Close your eyes when you cough so it seems more painful and realistic. You can strain your voice a little if you push it to it's limits for a few minutes. Just be smart about it. If you start screaming when others are around to hear, they will likely suspect that is the source of your sore throat.  Try singing forcefully. For best results, pick some loud music that has lots of screaming lyrics or notes that are outside your vocal range. Alternatively, you can try whispering instead. For some people, whispering strains their voices more than screaming does. 

Now, please write a short abstract for it in Indonesian. Abstract:
Bernapaslah lewat mulut. Kurangi minum. Batuklah sampai agak sakit. Benamkan wajah ke bantal dan menjeritlah.