Thanks for writing in.
It can be blister beetle dermatitis
, papular urticaria
,insect bite reaction.
You can apply Calamine
lotion over the affected area.It is cooling and soothing lotion.It will relieve itching.Also you can take tablet Zyrtec for itching.
Also I encourage you to visit a dermatologist
or physician for proper diagnosis and treatment.
Hope this helps.