The cause of erythema in the area where dengue fever is bitten by mosquitoes

Dengue fever is an acute infectious disease caused by the dengue virus, which is mainly transmitted by mosquito bites. After being bitten by a mosquito, symptoms such as erythema and papules usually appear at the bite site.

1. Erythema: After being bitten by a mosquito, the mosquito's saliva will enter the skin, which will stimulate the body to produce an allergic reaction, resulting in local erythema. Patients can be treated with calamine lotion as prescribed;

2. Pimples: When the human body is bitten by mosquitoes, due to the action of toxins on the skin and mucous membranes, it will lead to local pimples and accompanied by itching symptoms.At this time, the patient can be treated with topical drugs such as hydrocortisone butyrate cream and mometasone furoate cream under the guidance of a doctor;

3. Blisters: If the patient is not treated in time after being bitten by mosquitoes, it may lead to the further spread of toxins, thus forming blisters. Patients can use boric acid solution to wet compress the affected area according to the doctor's instructions, and can also be treated with oral loratadine tablets, cetirizine hydrochloride tablets and other drugs;

4. Petechiae: If the patient is bitten by a mosquito again during the illness, it may cause the toxin to spread to other parts, thus forming petechiae. It is recommended that patients can be treated with drugs such as compound beclomethasone camphor cream, triamcinolone acetonide acetate cream and other drugs under the guidance of a doctor.

Pay attention to personal hygiene in daily life, bathe frequently, change clothes frequently, and avoid scratching the affected area with your hands to avoid aggravating the condition. Pay attention to a light diet and avoid spicy and irritating foods, such as chili peppers and peppercorns.