You probably do not need to worry
about this complaint. Basically, certain individuals have very sensitive skin in which the blood vessels and inflammatory cells living under the skin react to very minor stimulation. Dermatographism, which is the red marks that appear when you scratch your arm, is a classic example of this. Generally, dermatographism and related skin findings are not a major medical concern, although they can be a bit cosmetically unappealing when they occur. Of course, you can limit this by trying to remember not to scratch or otherwise manipulate the skin when you are out in public.
If you have other allergic or concerning symptoms you might want to see your doctor
. In particular, if you ever have episodes where you have swelling of your lips, face, or tongue or if you ever experience sudden wheezing or trouble breathing, these are signs of a serious allergic or inflammatory reaction and you should seek emergency medical care.
Furthermore, if you have ever had an episode like this, you should probably carry an epinephrine pen with you. Talk to your primary care doctor
to determine whether this is appropriate.