There are many reasons to hate needles beyond injections and IVs being uncomfortable. 

IVs, for one, are an imperfect drug delivery method—one with a risk of infection and dependent on the presence of a trained professional. Not to mention the recent extreme weather-related IV fluid shortage in the U.S. 

However, IVs are still a necessary evil especially for administering biologic drugs, which are generally too large to be delivered orally.

Now, bioengineers may have found a solution to this problem. Their inspiration lives under the sea.