My skin is itching all over. if i scratch it burns. my nipples are burning like fire. nothing can touch my skin without it burning. i have taken allergic tablets and it doesnt change any symptoms?

You need to see a local Dr who knows what can cause this where you live. And can examine u.

Depending on when these scratching and burning of skin started; it could be anything from Allergy to what one is eating/drinking or even the lotion/cream/oil one rubs on the body. One must search carefully for recent changes in these areas that might be inducing this symptoms. Infestations are possible too. A visit to the PCP for Physical Examination and Laboratory investigation is encouraged