Image: Two images almost identical to each other stacked vertically. The top one is the back of a neck of a person wearing a sweater with the tag sticking out. It is captioned “What it looks like”. The bottom image is the exact same image but the sweater’s tag has been replaced with a cactus. It is captioned “What it feels like”.
Not just the tags, also the seams. For some reason manufacturers tend to make the outside of clothes more comfortable to wear than the inside. The many tiny micro-cuts clothes produce are extra uncomfortable with allergies.
Just wear shirts inside out. Much nicer on the skin. Doesn’t work well for clothes with zippers or pockets but usually those are reserved for outer layers anyway.