What does the bite of a black widow look similar to surrounded by comparison to a non-venomous spider bite?

i am concerned because my daughter has 4 strange bites on her, and i own been seeing black widows around the house.What does the bite of a black widow look similar to surrounded by comparison to a non-venomous spider bite?
A black widow spider bite give the appearance of a target, with a ashen area surrounded by a red ring. Severe muscle discomfort and cramps may develop in the first two hours. Severe cramps are usually first feel in the vertebrae, shoulders, abdomen and thighs. Other symptoms include incapacity, sweating, headache, anxiety, itching, nausea, vomiting, difficult breathing and increased blood pressure. Young children, the elderly and those with dignified blood pressure are at highest risk of developing symptoms from a black widow spider bite.
If she have any of these symptoms take her to the doctor or the emergency room and tolerate them decide for sure. Black Widow bites are harmful! Good Luck, I hope she feels better.
gross sure it's not a staph infection