Does hypnosis really work as a therapy?

I have 2 hang-ups which can cause real health issues. One is that I can’t swallow pills or capsules unless they are really small (thankfully many antibiotics come in liquid form) and I can’t do eye drops (with both glaucoma & macular degeneration throughout my family, no less). I’ve seen ads for stopping smoking or losing weight with hypnosis, but never knew anyone who tried hypnosis & was wondering if it really does work & if it might work in a situation like mine. Anyone have any personal or anecdotal experience?