 [ Symptoms ] 21 weeks pregnant i have got reddish ring circles… [ Disease ] your lesion looks like a skin infection caused by a fungus or it can be an allergic contact dermatitis…but as your history is incomplete regarding allergy you should consult a dermatologist as early as possible before using any creams or lotions…more importantly as you are pregnant…many home remedies lotions or creams  can exacerbate your symptom or can harm your baby…best thing is to keep the area clean and dry and avoid any allergens like ornaments if any chance is there for allergy… dont ever use any medicine without consulting a dermatologist and informing about your pregnancy thankyu