The mole behind it seems to be on fire. Is this melanoma?

Melanoma refers to a pigmented nevus with malignant changes. If your mole is only caused by the increase of the mole due to excessive heat, it is generally not necessary to take treatment, but if the mole suddenly appears or grows rapidly, the color continues to deepen, and comet-like small tumors appear around, it will be considered as melanoma. If you are not assured, you need to go to the hospital dermatology department for examination.