Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that he has been bitten by some poisonous insect leading to
allergic reaction as the toxic chemical injected by the insect/bug can lead to severe allergic reaction and the itching and bumps can be due to it..
Other cause can be
Mite Infestation causing Scabies..
I would suggest you to consult an Allergist and get evaluated and a thorough clinical evaluation can help in diagnosis and treatment can be planned accordingly..
In case of allergic reaction you can be advised to take anti allergics like Allegra or Levocetrizine..
You can also be advised to apply
Calamine lotion..
Do cool compresses to relieve itching and soothe the skin..
Apply steroid ointment over the bite site..
You can also be given injectable
steroids to relieve itching followed by oral anti allergics..
In case of Scabies, you can be advised to apply Prethermin lotion over the skin..
Taking oral
Ivermectin can be advised..
Take anti allergic to relieve itching..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.