A mole can grow on the skin of a human body, perhaps one or more. Moles usually appear before the age of 20. They are usually gray in many shapes and sizes. There are many colors.
Signs to identify melanoma moles are: the mole grows very fast, develops unevenly (half of the moles grow bigger with the other half). Normally benign moles are usually small (smaller than the ballpoint pen) if melanomas are more than 6mm in diameter. Benign moles are usually brown, while melanomas often have darker shades of brown at different sites and they have an anatomical texture. Sometimes they are blue, white ... Especially the mole starts to darken color (from some 1-2 weeks, months notice the color change).
Melanoma is a very dangerous type, rapid development, metastasis quickly (liver, bone, lung, brain, lymph nodes ...). However, if the disease is detected early, timely treatment in the early stage of the disease is high. Absolutely no use of the chemical to remove moles will be very dangerous.
In the letter you do not say the morphology of the mole should not be conclusive, it is best to immediately go to medical facilities for early examination and treatment.