Do you give him rawhide chewies??????? STOP if you do....The white foam bothers me. Yellow bile is one thing...white foam I have often heard of or seen from dogs who cannot digest rawhide in their stomach. If he continues to throw up, get him x-rayed for a possible blockage.
Csabre Sch1, Hexe Sch2, Bengal, Komet, Kyra, Kira HGH & Kougar v Wolfstraum ~ Ziberia BH ~ Danger Sch1 RH SAR ~ ATB~ Kougar Sch3, Kyra Sch3, Cito Sch2, Alice Sch1, Kelsey CD, Ret ~ Basha - Fenja Sch3s