I will focus on simple stuff related to VOG. VOG will exasperate respiratory problems. It can also cause flu like symptoms, ache all over, heavy legs, dizziness, and difficulty thinking clearly.
Asthma and coughing are likely effects.
Some ideas to mitigate damage to humans and pets.
Stay inside when possible, use air-conditioning if available, and use HEPA filters in each room you spend any serious time in. From EPA -- its almost like they want to scare you off, its so difficult and expensive, NOT!
Air purifier informationA room air cleaner can be effective in reducing levels of SO2 and/or PM2.5 from the air. Those living close to eruptive vents need protection from both SO2 and PM2.5, so will need a specialized air cleaner which has both a HEPA (PM2.5) filter and an acid gas (SO2) filter (e.g. activated carbon or other sorbent). Those living further from the vent can use an air cleaner designed to filter fine particles only (HEPA) since they are not exposed to substantial amounts of SO2.
Quality room air cleaners can be expensive and are designed for a room that can be closed-off from the rest of the house and the outdoors. Periodic filter replacement and other maintenance is required for air cleaners to perform as designed.
Some recommend soaking a bed sheet in baking soda, 1 tablespoon per gallon. The dosing sounds low to me, why not kick it up to a cup. In theory, this sheet, hung up, will attract positively charge particles, acid from the volcanic emissions.
Use this winds map to see when your impact may be the worst.
Here is an SO guide on how to use the wind map.
This from SOEST is interesting, but misses the point, my point, being that I am heavily impacted by the Volcano, on Oahu at this time and for the last 4 days it was noticeable.
And here, a nice summary of mitigating actions you can take, especially if you like essential oils.
Here is some satellite imagery on VOG and SO2.