Patch tests allergologiques are accomplished according to the technology of the prick, which consists in making a small superficial injection, with a lancet with which end is provided with a very small top, across a drop of the allergen beforehand deposited on the skin. They are practically painless and draw away at most...

Patch tests allergologiques are accomplished according to the technology of the prick, which consists in making a small superficial injection, with a lancet with which end is provided with a very small top, across a drop of the allergen beforehand deposited on the skin. They are practically painless and draw away at most...