Withdrawal symptoms are extremely drastic and can include serious headaches, heart attacks, vomiting and death in some circumstances. Depending on how long and how much of the drug has been ingested, the body will crave the substance harshly, putting strain not only physically, but mentally and emotionally also. Drastic withdrawal symptoms are the reason that drug rehabilitation facilities are the safest way to help yourself or a family member looking to overcome drug or alcohol addiction. With the assistance of medical staff, the person can safely allow their body to get clean, with medical intervention available if necessary. There are different routes to take with rehabilitation and assisted detox, but medical detox is sometimes the best choice.