Tethered headsets are physically connected to the laptop or computer. It is a much more complex system that gives an ultimate VR experience. The VR headset for iPhones works pretty well with iPhone, giving the user an awesome virtual reality experience.
DHA (docosahexaenoic acid) is an omega-3 fatty acid often recommended to women during pregnancy. Thought to protect against a number of pregnancy-related complications, DHA is also said to promote the health of the developing child.
If you're still suffering -- and if your allergies disrupt your sleep or ability to work -- talk to your doctor about which medications are right for you. Antihistamines like Chlor-Trimeton and Benadryl are safe for pregnant women to take (as are the less-sedating Claritin and Zyrtec).