I know how you feel. I've had parasites since age 16 (also now 22) that caused no symptoms other than constipation and bloating, and then recently i found out that the cause was parasites. So i took diatomaceous earth for a week or so, and now the bugs are scattered all over.
Just wondering: if herbs caused this mess for you, why do you keep going back to herbs, especially since you have access to Rx drugs? I would say that since herbs aren't working for you, you should do the Rx only. Albendazole controls the parasites that have scattered ; it is systematic, i have read. Also, the recommendation i've read online is "Albendazole is in some cases, given in a cycle of 4 weeks followed by 2 weeks of not taking the drug. This is iterated for a total of 3 cycles. Always store Albendazole in a cool and dry place."
good luck. keep your head up, and keep us updated. Let's win this war together