I am a man of 40 years old doc whether the use of hot tissues is dangerous
Thank you for the question.
From the hot tissue you mentioned, maybe what you mean is hot tissue magic that is often used to maintain erections and delay premature ejaculation. Basically, this magic tissue provides anesthetic / anesthesia or numb effects on the surface of the penis, so the stimulation or sensation felt by the penis will be reduced, and delay premature ejaculation.
However, side effects that occur due to the use of tissue magic have not been studied further, due to the lack of scientific evidence examining the benefits of this tissue magic. In addition, products on the market vary in types and types so that side effects can vary. Thus, the use of magic hot tissue is not medically recommended.
Here are other suggestions for maintaining an erection and delaying premature ejaculation:
Masturbate 2 hours before sex.
When you want to ejaculate, squeeze the head of the penis to relieve the sensation of wanting to ejaculate.
Use condoms to reduce sensitivity to the surface of the penis.
Hopefully this information can be useful.