6th house belongs to Mercury. Ketu in 6th house is considered debilitated. This is 'Pucca' house of Ketu. Here again the effect of Ketu depends upon the nature of Jupiter. It gives good result regarding son. The native is a good adviser. If Jupiter is benefic then the native has a long life and his mother is happy and the life is peaceful.If any two of the male planets viz Sun, Jupiter, Mars are in good position then Ketu is benefic. If Ketu is malefic in 6th house then maternal uncle suffers . The native has to suffer due to useless travels. People turn into enemies without any reason. The native suffers from skin diseases. If Moon is in 2nd house then mother suffers and even the native.s old age is troubled.
Lal Kitab Remedies for Ketu:
Wear golden ring in the finger of left hand.
Drink milk with yellow and wear gold in the ear.
Heat up a rod of gold and then dip it in milk. Then drink it. It would restore mental peace, increase longevity and is good for sons.