If you have a dog that becomes ill here is something to consider as they may have eaten these outside without your knowing. I know I am always taking the acorns from the local scrub oaks away from Chaos.
Seasonal Advice - Keep your dogs away from Acorns (from the Oak Tree) & Conkers (from the Horse Chestnut Tree)
Conkers ( chestnuts): Signs of poisoning usually appear within one to six hours. Clinical signs are drooling, excessive drinking, vomiting, diarrhea and abdominal pain, difficulty breathing.
Seek immediate veterinary advice should you have any worries.
Acorns: Acorns are highly toxic for pets and can easily be eaten. They are most dangerous before they ripen, when they are still green. Signs include vomiting, diarrhea, abdominal pain, loss of appetite and lethargy.
Seek immediate veterinary advice should you have any worries.