Antidoting Gelsemium ?

So my two year old son had the flu the other day. His symptoms fit for Gels. pretty perfectly. The sickness came on over a 24 ish hour period, he was uncharacteristically lethargic, and taking naps and falling to sleep in the evening very early. Peckish appetite, extremely restless sleep with a lot of whimpering and yawning. He developed a fever and threw up a few times.
I gave him one dose of 30c in the morning and he fell asleep pretty soon after, slept solid for almost two hours and woke up feeling much better. His nose did begin to run just a bit right after the dose, and continued to after his nap.
I followed poor advice and decided to give him another dose, this time dissolved in water and succussed.
His fever spiked and he had another rough night. The next day his nose was not running and he woke up with an incredible amount of energy and great mood. It took a few hours for the energy to wind down, and then he was back to seeming like he was still recovering from the illness.

Today he has been in an OK mood, with a few exceptions. Last night he woke up absolutely heartbreakingly sobbing, from what seemed like a pretty bad dream, and it was difficult to calm him back down. During the day he is ok unless he is told something he does not like. He freaks out, starts crying hysterically and throwing a tantrum.
I know this isn’t totally out of the ordinary for a toddler, but he is usually a bit more reasonable.
I really wish I hadn’t given him the second dose, and I’d really like to stop the effects of Gels. if someone could help me get him back to a right state, I would really really appreciate it!!!