Blisters are blisters. Itchy skin followed by redness and blisters may be caused by contact dermatitis, dengue, herpes zoster, etc. According to the different causes of the disease, you can use topical drugs or oral medication.
1. contact dermatitis: skin contact with allergic or irritating substances leads to dermatitis, can cause itching and then redness and blisters, can be used topically dexamethasone ointment or hydrocortisone ointment treatment, and oral loratadine and other anti-allergic drugs.
2. Dengue: caused by streptococcus invasion of superficial dermal lymphatic vessels, can cause local itching, redness, swelling and blisters, the early use of adequate penicillin treatment, at the same time, available magnesium sulfate wet compresses, and topical use of antibiotic ointment, such as mupirocin ointment.
3. Herpes zoster: caused by varicella zoster virus infection, can first cause itching, followed by redness, swelling and blisters, should be early oral acyclovir, ganciclovir and other antiviral drugs, while the local use of acyclovir cream.
Itchy skin followed by redness, swelling and blisters should be timely to the hospital, improve the examination, clear the cause of the disease and then give timely targeted treatment. The above medications should be used in accordance with medical advice.