No Hessonite or Gomed which is a strone of Rahu is not recommended, despite your Rahu mahadahs agoing on as you have Kaalsarp dosha in your horoscope. I would suggest you doing Rahu remedies which are given below.
1. Read Hanuman Chalisa daily in the morning
2. Do Rahu daan every Saturdays evening
Blessings,
Navneet Khanna
Astrologer