Toots is way right ...at $30-40week in bees and supplies there is no better more cost effective actually effective treatment .
If you have money time and skill, some use injectable venex ....this can be taken anywhere ,mixes well in saline or procaine and can be just as powerful as live stings. ...the cost of venex20 and knowledge is also inhibitory ....try some venex rikky maybe little finally dent your stubborn bart
Here is sapis work again in downloadable pdf ...you can see whole bee venom is more effective that doxy ceph and dap all together on ketes ,persisters and culture ...and way less toxic to the human imo
www.mdpi.com/2079-6382/6/4/31