Hi,
Welcome to health care magic,
Small itchy red bumps might be physical
urticaria or allergic hives which could occur as a result of physical touch,pressure, heat,cold,anxiety, exertion etc.
Urticaria is a skin condition with raised, red, itchy bumps. It is also known as hives.
Causes are unknown in most cases - although infections,drug sensitivities, antihypertensive drugs, thyroid abnormalities (antithyroid
antibodies),iron or Vit B12 deficiency and underlying autoimmune diseases such as
diabetes.
So,if you are suffering from this then first thing you don't have to worry.
It may subside by itself or you may take antihistamines like avil 25 mg or
cetrizine 10 mg for 2 to 3 days available over the counter and the rashes or itchy bumps will go away.
You can
consult dermatologist for further advise if bumps still persists.
Thanks and Regards,