Thanks for posting the qwery.
These kind of lesion may be insect bite dermatitis
or herpes zoster
which is a viral infection.
Herpes zoster usually affects one side of face where the blisters are arranged linearly which can cause painful burning sensation. Insect bite also mimicks the above with itching sensation and centre black necrotic skin lesions surrounded by blisyers.
Proper treatment is recommended after consulting a dermatologist
drugs along with anti allergic tablets with topical creams are usually prescribed.
Hope for speedy recovery.