Thanks Raj,now atleast I know it is Eczema.
What I am more bothered about now is the scalp and the leg.After the shampoo bath,the scalp remains clear till the evening.Then after my baby sleeps in the night and gets up in the morning,the dandruff like crusty,honey coloured flakes re-appear and they itch throughout the night.I read about cradle cap too,but I heard that cradle cap does not itch.So,this must be Eczema on the scalp too.Now,I apply olive oil on his scalp before bath for about 5 minutes,then apply shampoo,use a soft brush to remove the flakes and then wash.After the bath,after drying his hair(which anyway is scanty!)I apply coconut oil lightly.That seems to be giving him some relief from the re-appearance of flakes.The doctor also suggested olive oil or coconut oil.
Since he keeps rubbing his legs against the sheets,I have started applying the creme and making him wear his socks.That is helping a bit.He is otherwise a very cheerful and active baby and does not trouble me at all,even during the nights.He wakes up twice for feeding in the nights(from when he was born) and almost immediately goes back to sleep without me having to put him to sleep.Sometimes,he plays all by himself after the feed and after 10-15 minutes,goes to sleep.This is when I feel God is being so cruel to him ,my poor little fellow who doesn't trouble anyone!
I contacted an Ayurvedic doctor in Kerala who suggested to use Coconut oil in which Hibiscus flowers have been boiled.It seems that is the treatment for Eczema.I am yet to get that oil.