4. Taking Medications or Intravenous Drugs
Drugs like some penicillins, cephalosporins, moxifloxacin, HPV vaccines, shingles vaccines, as well as injections of tetanus antitoxin, rabies vaccine, etc., may lead to hives.
5. Congenital Genetic Constitution
This is easy to understand. For example, if parents have a history of allergies, the probability of their children having this disease will be relatively high. Or people who have had allergic rhinitis, allergic asthma, and other allergic diseases before, are more likely to develop this disease.
6. Environmental Factors
If you are in a place or season with a lot of dust, lint, or pollen, it is also easy to develop hives.
