If someone has a weakness in his stomach then one should recite this Surah 11 times and blow on water and drink 3 times a day for 7 days. InshaALlah, one will be cured.
اِنَّاۤ اَنۡزَلۡنٰهُ فِىۡ لَيۡلَةِ الۡقَدۡرِ ۖ ۚ ٠ وَمَاۤ اَدۡرٰٮكَ مَا لَيۡلَةُ الۡقَدۡرِؕ ٠ لَيۡلَةُ الۡقَدۡرِ ۙ خَيۡرٌ مِّنۡ اَلۡفِ شَهۡرٍؕ ٠ تَنَزَّلُ الۡمَلٰٓٮِٕكَةُ وَالرُّوۡحُ فِيۡهَا بِاِذۡنِ رَبِّهِمۡۚ مِّنۡ كُلِّ اَمۡرٍ ۛۙ ٠ سَلٰمٌ ۛهِىَ حَتّٰى مَطۡلَعِ الۡفَجۡرِ ٠