Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that you have been bitten by any poisonous insect/bug/wasp etc and the poisnous substance that is injected by it under your skin has lead to severe
allergic reaction leading to red bumps, rashes and a lump under skin in lower part of neck that can be an
inflamed lymph node secondary to allergic reaction..
It seems to be a moderate allergic reaction and you need not to worry as it will get resolved soon..
You should take anti allergics like
Benadryl or Levocetrizine or Allegra..
Take anti-inflammatory painkiller like
Ibuprofen that will reduce inflammation as well as pain..
You can apply Steroid ointment over the bumps..
Do cool compresses to reduce inflammation..
Apply
Calamine lotion as it will reduce inflammation as it will soothe your skin..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.