https://medlineplus.gov/ency/imagepages/2432.htm
Insect bite reaction - close-up: MedlinePlus Medical Encyclopedia Image
This is a 2 to 3 centimeter wide blood-filled (hemorrhagic) blister (bullae) that has resulted from an insect bite. It is located on the wrist. Bullae...
insect bite reactionclose upmedical encyclopediamedlineplusimage