Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain rashes after a
bug bite is due to
allergic reaction to the toxic chemical injected by the bug bite inside the body of the individual..
Formation of rough itchy patches and rough bites seems to be due to it only..
I would suggest you to consult an Allergist and get evaluated and a thorough clinical evaluation along with allergic testing like
Patch test,RAST test and food challenge test can be diagnostic.
He can advise you allergic medicines like
Benadryl, application of steroid ointment over rashes..
Cool compresses can help..
You can also apply
Calamine lotion as well as petroleum jelly over the patches to soothe the skin..
Hope this information helps.
Thanks and regards.
Dr.Honey Nandwani Arora