Treating the symptoms rather than the problem.I would pass on this one. 

Here's the "symptoms:" Signs of a root clog in a sewer or drain line (source: https://info.kensplumbing.net/blog/signs-that-tree-roots-may-be-clogging-your-underground-pipes)Frequent, unexplained clogs in toilets, tubs, or sinks.Frequent toilet backups.Gurgling sounds.Water draining slowly from the tub or sink.In two recent cases, there was backup coming into the walk-in shower and a toilet was forever clogged. 

You don't know if you are one of unlucky ones that suffer some really serious symptoms.

those are typically symptoms of shifting foundations as well. 

A person is typically carrying COVID for a week before he/she shows symptoms.

It's an actual symptom of anxiety and depression which I can see would accompany sickness, especially if we are actually talking about COVID.

"As a best practice, documentation contemplated in certain circumstances by the Assistance Animals Guidance is recommended to include the following general information: The patient’s name, Whether the health care professional has a professional relationship with that patient/client involving the provision of health care or disability-related services, and The type of animal(s) for which the reasonable accommodation is sought. . . .Also, the documentation should include whether the patient needs the animal(s) (because it does work, provides assistance, or performs at least one task that benefits the patient because of his or her disability, or because it provides therapeutic emotional support to alleviate a symptom or effect of the disability of the patient/client, and not merely as a pet)."

Love to hear the thoughts of those who are using effective CRM's in their symptoms. 

You must know the symptoms of black mold because most of the homeowners take mold unseriously and after that, it will affect their health and cause other problems.

Some cancer patients have only medical marijuana to lean on to answer those two symptoms of their disease.