If antimatter touches you, the antimatter would then annihilate with the matter which is you and then it would release gamma rays and other particles with a burst of energy and cause you to blow up.
The process is called annihilation and converts the combined mass of the matter and the antimatter into energy and the energy that is released is substantial with even a small amount of antimatter being capable of producing a powerful explosion.
As soon as antimatter touches matter it blows up and so since humans are made of matter you would also blow up if it came into contact with your skin or body.
Humans are made up of matter as matter is anything that occupies space and has mass and the human body, just like all physical things also fits this definition.
Humans are also composed of atoms, which are also the fundamental building blocks of matter and the atoms in turn form molecules, cells, tissues and organs, all of which contribute to the physical structure of a human being.
Some people have found antimatter and have produced antimatter in experiments as well although antimatter is extremely rare in nature.
Antimatter has been created and detected by scientists, including antihydrogen, in particle accelerators such as the Large Hadron Collider at CERN.
They have not found large quantities of antimatter in the universe but they do observe the antiparticles like antiprotons and positrons in cosmic rays.
Although no macroscopic amount of antimatter has ever been assembled as a result of extreme cost and the difficulty in production and handling.
When matter and antimatter collide, they annihilate each other and convert their mass into energy and the process releases a tremendous amount of energy, which is roughly equivalent to a nuclear bomb for every gram of antimatter which collides with matter.
A gram of antimatter that collides with a gram of matter would release around 43 megatons of TNT equivalent which is enough to destroy some things but not enough to destroy an entire planet.
An antimatter bomb would be pretty powerful and can release the same amount of energy as a nuclear bomb.
The amount of power than an antimatter bomb would have would be directly related to the amount of antimatter being used.
Even a small amount of antimatter being used for an antimatter bomb it would produce a tremendous release of energy.
One gram of antimatter that reacts with one gram of ordinary matter would release the same amount of energy as a nuclear bomb which would be around 21.5 kilotons of TNT.
A lb of antimatter in contrast would also produce an explosion that would be equivalent to 20 megatons of TNT.
The energy that is released by antimatter annihilation is also considered the densest form of energy release that is known.
Antimatter is a substance which is composed of antiparticles that are counterparts to ordinary particles such as electrons and protons, but with opposite electric charges and other quantum properties.
And when matter and antimatter meet, they then annihilate each other and convert their mass into energy, which is often in the form of photons "light", or other particle-antiparticle pairs.