I recently got discharged from the hospital with two huge blue bumps at the injection sites. The pain was constant no matter how I positioned my body, even without touching them. I've had injection bumps before, but never this big or painful. I didn't apply anything to the previous ones—they resolved on their own, though it took a very long time (up to six months). This time, I first tried an iodine grid—zero effect. Then, like you, I scoured websites for advice. I haven't tried cabbage or honey, honestly, but I applied Troxevasin (troxerutin) for several days with no improvement at all. Now I'm using the "SKORAYA POMOSHCH" bruise cream-balm, which, by the way, lists "for the absorption of post-injection hematomas and infiltrates" in its indications (http://www.forafarm.ru/manufacturing/catalog/112/417/). When I went to buy it, the pharmacist told me, "Why do you need that? It's weak—it's all just herbs! Get Troxevasin!" Of course, I thanked her for the advice, but it didn't help. Meanwhile, the "weak herbal one," oddly enough, is working... One side has completely cleared up, and the other is almost gone too. Give it a try; it's inexpensive—at the pharmacy where I usually shop, it costs 75 rubles (that's in Moscow, and not a wholesale price pharmacy). I'll be glad if my advice helps someone. Stay healthy ;-)
P.S.: The bumps mostly form not from the medications injected but from the clumsy hands of the medical staff who, instead of administering the drug properly, inject it with all their might!