What should I do if my skin itches and small bumps appear when scratched?

Some friends have delicate or allergic skin, so if the skin is irritated accidentally, it will easily become itchy, and large red bumps will appear if scratched. In addition to affecting the appearance, it is also very uncomfortable, especially annoying for friends, but they can do nothing about it. So what should you do if your skin itches and small pimples appear when you scratch it?

It is a very common symptom that small bumps appear when the skin is scratched due to itching. Only patients with urticaria will experience this situation.

(1) Eliminate the cause

For each patient, efforts should be made to find the cause of the attack and avoid it. If the cause is infection, the infected lesions should be treated actively. If the allergy is caused by drugs, the allergy medication should be stopped; if the allergy is caused by food, find out the allergic food and do not eat this food again.

(2) Avoid inducing factors

For example, for cold urticaria, you should keep warm; for acetylcholine urticaria, you should reduce exercise, sweating and mood swings; for contact urticaria, you should reduce the chance of contact.

(3) Drugs that inhibit mast cell degranulation and reduce histamine release

① Metabuterol sulfate is a β2-adrenergic receptor stimulator that can increase the concentration of cAMP in the body, thereby inhibiting mast cell degranulation.

② Ketotifen inhibits mast cell degranulation and prevents the release of inflammatory mediators (such as histamine, slow-reacting substances, etc.) by increasing the concentration of cAMP in the body. Its suppressed. It is stronger and faster than sodium cromoglycate and can be taken orally.

③Sodium cromoglycate can block the binding of antigen and antibody and inhibit the release of inflammatory mediators. If used in combination with glucocorticoids, the dosage of the latter can be reduced and the therapeutic effect can be enhanced.

For patients with chronic urticaria, the cause cannot be found clinically. Experts who study urticaria point out that the common causes of urticaria include food and food additives, inhaled air pollutants, and drugs. The disease may be triggered by sudden changes in temperature, exposure to strong sunlight, or mental problems.