Hi Deborah,

The apple flavoring is not an issue.

Some horses eat it fine mixed in their feed. Others need to have it syringed in. I have one of each so experience both ways. When syringing I mix it into water (doxy isn't water soluble but it does make a slurry), shake and down the hatch. Could also try some olive oil but it does get messy.

The reaction is most likely to the bite itself as the deer ticks have a nasty bite and IR horses seem to really react badly to them. Not uncommon to get the crusty scab and swelling.

Having a Lyme MultiPlex from Cornell done right after being on the doxy may give you equivocal results as doxy is used to treat it.

Lavinia, Dante, George Too and Peanut
Jan 05, RI
EC Support Team