Glad he is picking up.
We had a Strangles outbreak at the riding school many moons ago. Most were fine but several contracted it including a Welsh pony that had been used as a stud. The owner of this pony was insistent that he was stabled and boy, was he sick. He stopped eating and drinking and we could see he didn't want to live.
One of the owners, a very wise woman, told me to take him out to the Downs and turn him out with the other infected animals, she would deal with the owner.
I led him out, a 15 minute walk took me over an hour with him coughing and staggering. I turned him out with the others and thought I would find him dead in the morning.
Not at all, although gelded he was still a bit 'studish' and had cut out the mares and was busy keeping them for himself.
Some take sickness harder than others.