Namaskar: In my opinion, the person is born under Taurus Lagna. The current Maha Dasa of Rahu started since Feb 20025 for 18 years. This will depend on the exact time of Birth. You mentioned that the time period for the person is not running good since last few years. The Mangal Dasa was running from Feb 2018 to Feb 2025. Mangal being a ruler of 12th house is associated with Budh, ruler of 2nd house (finance, money) as well 5th house (thinking, children etc). In the house of Budh (5th) there are three planets, Surya, Shani and Brihshpati (which is in transit to this house). Thus, there is a link from Mangal to Budh and thus associated with planets that are rulers of 9th (bhagya), 10th house (profession, Karma), 8Th (losses, misfortune), 11th house (gains) and 4th house (happiness, mother, property) in general. Thus, overall, I am not surprised that the years were not good for the person. In addition, currently, the 1st phase of Sade Sati of Shani is running. This addresses the issues with what was going on. In short, the aspect of 12th ruler Mars to Lagna is not appreciated. Rahu being friend of Lagna lord Venus is placed within 2 degrees. Venus although is Lagna lord is also ruler of 6th house (disease, enemies etc). To me it implies that till sub-period of Shani in Rahu comes and that is from March 2030 there will be health issues in addition to unseen ups and down. The question is how to mitigate such effects? Although Sade sati of Shani will still be running after 2030 but the person must try to minimize the current ongoing ill-effects. You may recite Mantra for Rahu Dev (Dasa Lord). You may find many but if interested I can give you two word Mantra given to me several years back by Rahu Dev himself. It is just to help out. He also showed me how to do it. But again, it was for me and I am not sure how it will work for other persons. Other option you may explore is to wear un-heated Neelam in silver ring. Be careful as I have seen extraordinary beneficial as well as malefic results with Neelam. Rahu and Shani both are Karmic planets and Sade Sathi teaches a lot to a person. I have seen beneficial results with offering Roti with Gud to Black color cow for 7 weeks continuous on each Saturday. One would be extremely cautious to get problems in 3rd to 4th week. If you are not ready, do not do this option. However, such actions may reduce the depression that the person is having and likely to get much strength to walk through the bad time period during Sade Sathi of Shani too. Rahu Dasa is likely to be much better than what the person has experienced with Mangal dasa. I hope it is helpful.