What bacterial infections cause hives?
Bacterial infections (such as urinary tract infections and strep throat) and viral infections (such as hepatitis and norovirus, a common cause of stomach “flu”) were also found to be triggers of chronic hives.
Occasionally the hives are a result of the immune system's over-reaction to a recent infection, such as a cold or flu. Hives are rarely due to a reaction to something touching the skin, such as soaps, detergents or lotions, although these can cause different types of allergic skin reactions.
- Hives or rash. Hives are red, swollen, itchy bumps on the skin. Chronic hives may be due to an immune response, which is triggered by factors like heat, extreme exercise, or alcohol use. Stress can also cause hives, and can make hives you already have even worse.
- Hives are NOT contagious. Generally speaking, to be contagious, a condition must have an infectious component, which hives do not have. As mentioned above, there are some viruses that can cause itchy bumps which are not hives, but these do not appear, disappear, and then reappear. They also usually occur in children.
- So can insect bites or drugs like penicillin. In winter some children develop hives when they are exposed to cold air. Occasionally, children with a strep throat will have hives. In most cases, however, doctors are unable to identify the specific cause of an outbreak.
Dozens of infections can cause hives, including throat, stomach, and genital or urinary (genitourinary) tract infections; fungal infections; mononucleosis; and hepatitis. The common cold often causes hives in children. Hives aren't directly caused by the infectious organism, as in chickenpox or cellulitis.
- Hives and angioedema also occasionally occur in response to blood transfusions, immune system disorders such as lupus, some types of cancer such as lymphoma, certain thyroid conditions, and infections with bacteria or viruses such as hepatitis, HIV, cytomegalovirus, and Epstein-Barr virus. Genetics.
- For most allergic reactions, the initial symptoms begin to go away a few hours after the allergen is removed and should be nearly completely gone after 1-2 days. If the itchy rash that you have on your arms and hands is hives (which would indicate a classic allergic reaction), you should see these go away fairly soon.
- Stress Hives Hives are itchy bumps caused by your immune system. They're generally caused by allergies, but they can also be triggered by stress. Anxiety causes a considerable amount of stress, so those prone to hives are likely to get them.
Updated: 17th October 2019