Plz help me dctr my son is 9 Yr old usko pata nahi kya nikla legs or hands ko plz..

A. this appears to be some type of allergy. anti allergic medicines has to be given to the child and you have to find the cause of allergyd do not give any type allergic food and do not apply any type of powder or lotion which might aggravate this allergy kindly give pldenty of fluids to the child and then meet your doctor for examination