Diabetes is a disease that affects your body’s ability to produce or use insulin. Insulin is a hormone. When your body turns the food you eat into energy (also called sugar or glucose), insulin is released to help transport this energy to the cells. Insulin acts as a “key.” Its chemical message tells the cell to open & receive glucose. If you produce little or no insulin, or are insulin resistant, too much sugar remains in your blood. Blood glucose levels are higher than normal for individuals with diabetes. There are two main types of diabetes: Type 1 & Type 2.
Details given below are according to the Ulama & Islamic Scholars & not from Hadees.
Translation: & say: My Lord, cause me to enter a sound entrance & to exit a sound exit & grant me from Yourself a supporting authority.
[Surah Bani Israeel: 80]
Recite the above verse of Surah Bani-Israel verse no. 80 for 41 times every day after the Fajar & Isha Salah & blow on water & drink it.
[Cures from the Quran a pocket Book by idara page: 11]
Many scholars & Aaleems has seen in their dreams, that they complaint about their diabetes (in their dreams) to Nabi ﷺ & He ﷺ advised to put Rose water (2 to 3 spoon) in some drinking water & drink it early morning empty stomach, the scholars say that they started the rose water as mentioned & their diabetes got cured fully.