Answer: its a common myth in many countries of the world that taking Milk and Fish together or after a little time can be harmful for health and can become cause of dangerous skin diseases. But according to medical research its nothing but a myth.
you can take Milk and fish together without fearing about anything because there is no proof that it can be harmful in anyway to human's skin.
i would also like to tell that i drank Milk Immediately after eating fish and there was no problem with me at all. so don't worry and take fish and milk together.
you can also ask Doctors about it and they will tell you the truth.