What is the difference between a deodorant and an antiperspirant?

Let's start with the fact that deodorant and antiperspirant will give you different types of cosmetics.
antiperspirants cause complete or partial control of excessive sweating.
They contain hydrated aluminum chloride - it causes the sweat tubing to shrink. Thanks to this, we sweat less. Aluminum chloride also has bactericidal properties - it eliminates the typical smell of sweat. So we don't have to use antiperspirants more than once a day.
Unfortunately, there is also the dark side of the antiperspirant - it can have harmful effects. Aluminum - actually aluminum. If used chronically on damaged skin it may be toxic.
Note - if you find aluminum chlorohydrate on the packaging - be careful!
Particular attention for nursing women, because toxins that enter the body - you pass on to your child. You can use antiperspirants, but be careful!
Use of antiperspirants:
After washing, apply antiperspirants to dry skin. The skin must be dry - otherwise aluminum chloride in contact with water will form hydrochloric acid, which irritates the skin. Once I used an antiperspirant on not very dry skin (probably you too) the effect was terrible burning of the skin.
The cosmetic can be used daily only in the event of excessive sweating, otherwise use it every other or third day. Antiperspirant should not be used on other parts of the body (other than around the armpits).
If the product gets into the eyes or on the mucous membranes - mucous membranes may be irritated, which in turn will lead to the penetration of aluminum ions into the blood and accumulation in tissues.
When using an antiperspirant, avoid using it on the skin after depilation. I know this sounds strange, because we usually depil our armpits in the morning, but the skin is irritated, which, as I have already written, can cause aluminum to penetrate inside the body.
If you notice any irritation - stop using the cosmetic for some time. It's best to brush the reddened area with an odorless cream (mild to the skin), and if the symptoms don't go away - consult a dermatologist.
Antiperspirant applied to healthy skin (without irritation) will not harm our body. Aluminum is removed along with exfoliating skin.

Deodorant they do not interfere with secretion, I suppress the secretion, but only fight odor (they contain bactericides).

As you probably already know - sweat has no smell, it only takes on when the natural bacterial flora covering the skin begins its fermentation. As bacteria love a warm environment - they feel perfectly around our armpits.
Deodorants do not contain aluminum chloride.

The use of deodorants:

Unlike antiperspirants, deodorants can be used not only in the armpits, but also in other parts of the body.
On the market we can find deodorants for the body - the so-called body spray, but also to the feet (foot spray) and even hair (hair refresher).
To the armpits, we can find deodorants in a spray, stick, gel, and stone (which I will admit to be honest, I'm slowly trying on - also expect a review soon on the blog. I'm curious how it works, etc.)
If you have sensitive skin - I recommend using deodorants without alcohol - those with alcohol - free or sans alcool on the packaging.
What deodorant or antiperspirant are you currently using? would you recommend it to other readers?