For the 1 st set of experiment, A- C EBP and A- C EBP mice were intraperitoneally injected with NNK dissolved in saline, 103 mg kg per injection or saline as control at 6 and 7 weeks of age Figure 1. doxycycline stomach pain Contact lenses provide nearly instantaneous pain relief, as they protect exposed corneal nerves, preserve binocularity and cosmesis unlike traditional pressure patches, improve visual acuity, can be combined with topical antibiotics for microbial prophylaxis and can be re- sterilized.