Never give Aspirin, Dispirin and Brufen tablets to the patient as these are known to increase bleeding tendency and also it increase stomach pain.
It also becomes difficult to detect Dengue in blood tests if the patient has taken these medicines.
Cleaning your surrounding is the key to prevent Dengue. You can remove still water from your surroundings which is the main source of mosquitoes. If you live in an area full of mosquitoes, make sure that you use products in your house that keep these small dangerous creature away. If unfortunate you are suffering from Dengue, then make sure that you eat properly to strengthen your immunity system.