Dermatology Questions? Ask an Online Dermatologist.
This is Dr. David
this could be a bad rope burn which could be infected.
hives can often be from a bad allergic reaction.
you need to see a doctor about these hives.
you may need oral steroids and antihistamines like benadryl 50mg to help calm down the hives
you might need a course of antibiotics to help your hives to calm down.
you might need steroid creams or even an epinephrine shot if the allergy is bad.
do you have a hospital or ER close to you where you can see a doctor about the hives?
do you want to upload a clear photo of the hives on your back here. I would be happy to look at it.