Hi Nithya ,how are you ? hyper pigmentation during pregnancy
is caused by higher Melanocyte
stimulating hormone level ,and it is very common phenomena ,if your are not getting rid of it you may opt for Glycolic Acid
peeling it is very safe and good treatment under the hands of experienced dermatologist
.you should always put on sun's cream ,good nutrition and use of citrus fruit juices .
take care and have bright and nice face ................. Bye Dr.Prakash Roy