Do not delay. Apply an ice pack wrapped in a towel for 15-20 minutes. Call your vet immediately. Call your vet immediately and take dog to the hospital. This is an emergency.
Heat stroke can cause irreparable neurologic damage.
Do not induce vomiting until instructed. In case of skin poisoning, wash with mild soap and flush well with water. Vomiting Withhold food for 12-24 hours. If vomiting stops, give ice cubes for several hours. If no vomiting occurs, give small amounts of water, then food.