Should I do another OAV treatment?

[Oneamateur]

I did 3 OAV treatment from the middle of Dec. to the 1st weeks of Jan. every 7 days. Yesterday, I saw one bee with deformed wings walking out of the hive. Should I treat my hive again? I don't have time to open the hive during the day time to do the mite count. It's too cold to do it in the evening. Thanks for your help.

[Groundhawg]

It will not hurt your bees to treat again and might hurt them (allow mites to increase) by not treating. 

[EaglePestEliminators]

The treatment is quite simple to follow, even though it requires a lot of patience and energy. The initial 3 treatments showed similar outcomes. Oxalic acid treatment via sublimation demands the beekeeper to purchase or borrow an applicator.

Like said do not hurt and try again.