I have lot of prickles on my whole body.

Dear Customer
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what is the possible causes of your medical condition ?
1. allergic reaction ( food , perfumes , substance , medications )
2. infections 
3. medications side effects 
What to do next ?
1. for now , use a topical anti histamine medication such as benadryl 
2. avoid any possible caused of your allergic reaction 
3. if the symptoms didnt get better or lasted longer than expected , consult a dermatology doctor as soon as possible 
4. doctor will perform some tests to determine the treatment pathway such as :
- clinical examinations 
- effected area culture test
- IGE blood level test 
What is the possible treatment pathways ?
- anti-histamine medications ( topical and oral ) 
- steroids ( topical and oral ) 
- antibiotics ( topical and oral ) 
3. in case of needing to use oral corticostiroids , you should first consult a dermatology doctor 
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Kind Regards