From the top, you should be the same grave. I don't know what kind of town he is guarding. It is not easy to prescribe the right medicine. For the time being, you can find a real Taishan stone or other famous stones, stand up and bury them next to your uncle's grave, so that his town can be isolated from the atmosphere or get rid of it. For your reference.
How to determine whether there are towns in the cemetery: which towns are there in the cemetery?
Towns in the cemetery
Towns are evil things.
The traditional custom is that real beasts (such as lions, tigers, etc. ) or imaginary beasts are placed in the cemetery or painted in front of the tomb to drive away evil spirits, protect the tomb, ward off evil spirits, seek peace for the owner of the tomb and reduce disasters for the victims.
In ancient times, cinnabar was used to seek good luck and avoid evil in summer and Wednesday. Cinnabar is either coated on the bone or placed at the bottom of the coffin. The cinnabar in Zhou tombs is eight centimeters thick. In the Han Dynasty, people developed some symbolic images and objects to seek good luck and avoid evil spirits. During the Wei, Jin, Sui and Tang Dynasties, there was another kind of artifacts specially made for tombs, namely tomb beasts, which were generally placed at the entrance of the tomb, facing the entrance of the tomb.
At the end of the Qing Dynasty and the beginning of the Republic of China, people put evil things in coffins, such as twelve kinds of essence, seven kinds of incense, Gui Xiang, cinnabar, realgar, seven-star board and cinnabar.