Hello, now it's 3times whenever am about to go in...

Dear Customer
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What is the possible cause of your skin rash before period ?
as period is quite huge hormonal change , this change may release histamine which attract the rashs and any other allergy-like reactions 
What is the possible treatment in this case ?
1. avoid hot water showers 
2. wear loose cloths 
3. avoid sweating 
4. use anti-histamine topical medications such as benadryl
What if the symptoms presisted ?
1. consult a dermatology doctor soon to do the needed medical examinations 
2. medical examinations such as :
- clinic check
- IgE levels 
- culture test from effected area 
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Kind Regards